dockerfile: add activitypub-base stub

Co-authored-by: Copilot <copilot@github.com>

.cargo/config.toml

@@ -0,0 +1,2 @@
+[env]
+SQLX_OFFLINE = "true"

.dockerignore

@@ -0,0 +1,10 @@
+target/
+.git/
+.env
+*.db
+*.db-shm
+*.db-wal
+.cargo/
+.sqlx/
+docs/
+dev.db

.env.example

@@ -0,0 +1,34 @@
+# Database
+DATABASE_URL=sqlite://movies.db
+
+# Authentication
+JWT_SECRET=change-me
+JWT_TTL_SECONDS=86400
+
+# OMDb metadata
+OMDB_API_KEY=your-key
+
+# Poster storage — Option A (local) is active. To use S3, comment it out and uncomment Option B:
+
+# Option A: local filesystem (zero external dependencies)
+POSTER_STORAGE_BACKEND=local
+POSTER_STORAGE_PATH=./posters
+
+# Option B: S3-compatible (MinIO, AWS S3, etc.)
+# POSTER_STORAGE_BACKEND=s3
+# MINIO_ENDPOINT=http://localhost:9000
+# MINIO_BUCKET=posters
+# MINIO_REGION=minio
+# MINIO_ACCESS_KEY_ID=minioadmin
+# MINIO_SECRET_ACCESS_KEY=minioadmin
+
+# Optional
+HOST=0.0.0.0
+PORT=3000
+BASE_URL=http://localhost:3000
+SECURE_COOKIES=false
+ALLOW_REGISTRATION=false
+RATE_LIMIT=20
+POSTER_FETCH_TIMEOUT_SECONDS=30
+EVENT_CHANNEL_BUFFER=128
+RUST_LOG=presentation=debug,tower_http=debug

.gitignore

@@ -6,3 +6,11 @@
 
 .env
 .env.prod
+
+*.db
+*db-shm
+*db-wal
+
+.worktrees/
+.superpowers/
+docs/

.sqlx/query-05d958c1fa38095ae2b5b81ede48fc85702d8c39c6301839de7b4d27f4a4d41b.json

@@ -0,0 +1,98 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                        r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at, r.remote_actor_url\n                 FROM reviews r\n                 INNER JOIN movies m ON m.id = r.movie_id\n                 WHERE r.movie_id = ?\n                 ORDER BY r.watched_at DESC\n                 LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 13,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "05d958c1fa38095ae2b5b81ede48fc85702d8c39c6301839de7b4d27f4a4d41b"
+}

.sqlx/query-0963b9661182e139cd760bbabb0d6ea3a301a2a3adbdfdda4a88f333a1144c77.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT COUNT(*) FROM reviews",
+  "describe": {
+    "columns": [
+      {
+        "name": "COUNT(*)",
+        "ordinal": 0,
+        "type_info": "Integer"
+      }
+    ],
+    "parameters": {
+      "Right": 0
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "0963b9661182e139cd760bbabb0d6ea3a301a2a3adbdfdda4a88f333a1144c77"
+}

.sqlx/query-0cd1a7b7255a0ee753deffab7cbb48027d22900a570b98a636c780cb3e2efd23.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT COUNT(*) FROM reviews WHERE user_id = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "COUNT(*)",
+        "ordinal": 0,
+        "type_info": "Integer"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "0cd1a7b7255a0ee753deffab7cbb48027d22900a570b98a636c780cb3e2efd23"
+}

.sqlx/query-0e36417429360e7e332f60768c2283a78b18c57cb72978921ccc0df963a756ba.json

@@ -0,0 +1,38 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, email, username, password_hash FROM users WHERE username = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "email",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "username",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "password_hash",
+        "ordinal": 3,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      true,
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "0e36417429360e7e332f60768c2283a78b18c57cb72978921ccc0df963a756ba"
+}

.sqlx/query-106b5b65162314c47217c26b7e89194094e10122ea596e8d9323968e600635a9.json

@@ -0,0 +1,98 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                    r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at, r.remote_actor_url\n             FROM reviews r\n             INNER JOIN movies m ON m.id = r.movie_id\n             WHERE r.user_id = ?\n             ORDER BY r.watched_at DESC",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 13,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "106b5b65162314c47217c26b7e89194094e10122ea596e8d9323968e600635a9"
+}

.sqlx/query-21751a2efb5fc58f5c1057f332f537419b7067ff665a03e248e6ea0fe7b6919b.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "INSERT INTO users (id, email, username, password_hash, created_at) VALUES (?, ?, ?, ?, ?)",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 5
+    },
+    "nullable": []
+  },
+  "hash": "21751a2efb5fc58f5c1057f332f537419b7067ff665a03e248e6ea0fe7b6919b"
+}

.sqlx/query-25fd01355c929a83daf2c802b8ae3adaa4ce73fc037e2bf2a87d60187aeb7361.json

@@ -0,0 +1,98 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                        r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at, r.remote_actor_url\n                 FROM reviews r\n                 INNER JOIN movies m ON m.id = r.movie_id\n                 ORDER BY r.watched_at ASC\n                 LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 13,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 2
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "25fd01355c929a83daf2c802b8ae3adaa4ce73fc037e2bf2a87d60187aeb7361"
+}

.sqlx/query-2c7353f34c4748d4d4be6abbf343fa7ea30eeb985c4bfd12b0fc3997d1ba03bb.json

@@ -0,0 +1,38 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT u.id AS \"id!: String\",\n                      u.email AS \"email!: String\",\n                      COUNT(DISTINCT r.movie_id) AS \"total_movies!: i64\",\n                      AVG(CAST(r.rating AS REAL)) AS avg_rating\n               FROM users u\n               LEFT JOIN reviews r ON r.user_id = u.id AND r.remote_actor_url IS NULL\n               GROUP BY u.id, u.email\n               ORDER BY u.email ASC",
+  "describe": {
+    "columns": [
+      {
+        "name": "id!: String",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "email!: String",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "total_movies!: i64",
+        "ordinal": 2,
+        "type_info": "Integer"
+      },
+      {
+        "name": "avg_rating",
+        "ordinal": 3,
+        "type_info": "Float"
+      }
+    ],
+    "parameters": {
+      "Right": 0
+    },
+    "nullable": [
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "2c7353f34c4748d4d4be6abbf343fa7ea30eeb985c4bfd12b0fc3997d1ba03bb"
+}

.sqlx/query-3047579c6ed13ce87aad9b9ce6300c02f0df3516979518976e13f9d9abc6a403.json

@@ -0,0 +1,50 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, external_metadata_id, title, release_year, director, poster_path\n             FROM movies WHERE title = ? AND release_year = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 2
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true
+    ]
+  },
+  "hash": "3047579c6ed13ce87aad9b9ce6300c02f0df3516979518976e13f9d9abc6a403"
+}

.sqlx/query-33d0dae7d16b0635c1c7eb5afd10824bb55af7cc7a854f590d326622863759d1.json

@@ -0,0 +1,50 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, external_metadata_id, title, release_year, director, poster_path\n             FROM movies WHERE id = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true
+    ]
+  },
+  "hash": "33d0dae7d16b0635c1c7eb5afd10824bb55af7cc7a854f590d326622863759d1"
+}

.sqlx/query-4ad3b7d450e46e8d4982a0517c7345b386fc7dc6cf3e72c924e2f5da49dfb469.json

@@ -0,0 +1,98 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                    r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at, r.remote_actor_url\n             FROM reviews r\n             INNER JOIN movies m ON m.id = r.movie_id\n             WHERE r.user_id = ?\n             ORDER BY r.rating DESC, r.watched_at DESC\n             LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 13,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "4ad3b7d450e46e8d4982a0517c7345b386fc7dc6cf3e72c924e2f5da49dfb469"
+}

.sqlx/query-4b3074b532342c6356ee0e8e4d8c4a830f016234bb690e1f6240f02824d6d84f.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT COUNT(*) FROM reviews WHERE movie_id = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "COUNT(*)",
+        "ordinal": 0,
+        "type_info": "Integer"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "4b3074b532342c6356ee0e8e4d8c4a830f016234bb690e1f6240f02824d6d84f"
+}

.sqlx/query-4c235060b78cc5c73e0400b39472467a36d3920ff4c020f5461b2cdb04361888.json

@@ -0,0 +1,98 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                    r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at, r.remote_actor_url\n             FROM reviews r\n             INNER JOIN movies m ON m.id = r.movie_id\n             WHERE r.user_id = ?\n             ORDER BY r.watched_at DESC\n             LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 13,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "4c235060b78cc5c73e0400b39472467a36d3920ff4c020f5461b2cdb04361888"
+}

.sqlx/query-4d85f0ff9732576bba77dc84d3885a0002c2b600c34ba4d99f1e1c5e99f35e75.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT strftime('%Y-%m', watched_at) AS month\n             FROM reviews\n             WHERE user_id = ?\n             GROUP BY month\n             ORDER BY COUNT(*) DESC\n             LIMIT 1",
+  "describe": {
+    "columns": [
+      {
+        "name": "month",
+        "ordinal": 0,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      true
+    ]
+  },
+  "hash": "4d85f0ff9732576bba77dc84d3885a0002c2b600c34ba4d99f1e1c5e99f35e75"
+}

.sqlx/query-4eeae6aa887319cab4a9fd673c3a75dec1e6681739d722481233a3d9e7a01955.json

@@ -0,0 +1,38 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, email, username, password_hash FROM users WHERE email = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "email",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "username",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "password_hash",
+        "ordinal": 3,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      true,
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "4eeae6aa887319cab4a9fd673c3a75dec1e6681739d722481233a3d9e7a01955"
+}

.sqlx/query-70843058606802f0958d216a47473f78b29854518c48c2da3cc11a94d6d37bb1.json

@@ -0,0 +1,104 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                    r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at, r.remote_actor_url,\n                    COALESCE(u.email, r.remote_actor_url) AS \"user_email!: String\"\n             FROM reviews r\n             INNER JOIN movies m ON m.id = r.movie_id\n             LEFT JOIN users u ON u.id = r.user_id\n             ORDER BY r.watched_at DESC\n             LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 13,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_email!: String",
+        "ordinal": 14,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 2
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true,
+      true
+    ]
+  },
+  "hash": "70843058606802f0958d216a47473f78b29854518c48c2da3cc11a94d6d37bb1"
+}

.sqlx/query-7bc4aebcb94547976d3d7e063e4e908fc22b977b3cbf063ee93ffe4648c42011.json

@@ -0,0 +1,50 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, external_metadata_id, title, release_year, director, poster_path\n             FROM movies WHERE external_metadata_id = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true
+    ]
+  },
+  "hash": "7bc4aebcb94547976d3d7e063e4e908fc22b977b3cbf063ee93ffe4648c42011"
+}

.sqlx/query-7d7e23355ee0e442f2aa27e898dcfa40bdc4b09391afe04325f076157d9d84aa.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "INSERT INTO movies (id, external_metadata_id, title, release_year, director, poster_path)\n             VALUES (?, ?, ?, ?, ?, ?)\n             ON CONFLICT(id) DO UPDATE SET\n                 external_metadata_id = excluded.external_metadata_id,\n                 title                = excluded.title,\n                 release_year         = excluded.release_year,\n                 director             = excluded.director,\n                 poster_path          = excluded.poster_path",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 6
+    },
+    "nullable": []
+  },
+  "hash": "7d7e23355ee0e442f2aa27e898dcfa40bdc4b09391afe04325f076157d9d84aa"
+}

.sqlx/query-7ff439f22f880f999a72aad1359eb8fec11fe868b940faee5a351795caaa2357.json

@@ -0,0 +1,62 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, movie_id, user_id, rating, comment, watched_at, created_at, remote_actor_url\n             FROM reviews WHERE movie_id = ? ORDER BY watched_at ASC",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 7,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "7ff439f22f880f999a72aad1359eb8fec11fe868b940faee5a351795caaa2357"
+}

.sqlx/query-8a70f21c39d203867c06dc0bf74a54745b3331b84ce9a2178f7812f1ed7262cc.json

@@ -0,0 +1,98 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                        r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at, r.remote_actor_url\n                 FROM reviews r\n                 INNER JOIN movies m ON m.id = r.movie_id\n                 WHERE r.movie_id = ?\n                 ORDER BY r.watched_at ASC\n                 LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 13,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "8a70f21c39d203867c06dc0bf74a54745b3331b84ce9a2178f7812f1ed7262cc"
+}

.sqlx/query-a01336632a54099e31686a9cbe6fc53fef1299fc7c7b52be44f99c2302490a22.json

@@ -0,0 +1,26 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT COUNT(DISTINCT movie_id) AS \"total!: i64\",\n                      AVG(CAST(rating AS REAL)) AS avg_rating\n               FROM reviews WHERE user_id = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "total!: i64",
+        "ordinal": 0,
+        "type_info": "Integer"
+      },
+      {
+        "name": "avg_rating",
+        "ordinal": 1,
+        "type_info": "Float"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      true
+    ]
+  },
+  "hash": "a01336632a54099e31686a9cbe6fc53fef1299fc7c7b52be44f99c2302490a22"
+}

.sqlx/query-a7c424c26663e4e51b1c563fa977f28e1d55234a242a7ddba50db13cf73b488d.json

@@ -0,0 +1,98 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                        r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at, r.remote_actor_url\n                 FROM reviews r\n                 INNER JOIN movies m ON m.id = r.movie_id\n                 ORDER BY r.watched_at DESC\n                 LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 13,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 2
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "a7c424c26663e4e51b1c563fa977f28e1d55234a242a7ddba50db13cf73b488d"
+}

.sqlx/query-aca9e7aaa32c23b4de3f5048d60340e978d31a36be9121da3c59378f2fc1ed8e.json

@@ -0,0 +1,26 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.director AS \"director!\",\n                          COUNT(*) AS \"count!: i64\"\n                   FROM reviews r\n                   INNER JOIN movies m ON m.id = r.movie_id\n                   WHERE r.user_id = ? AND m.director IS NOT NULL\n                   GROUP BY m.director\n                   ORDER BY COUNT(*) DESC\n                   LIMIT 5",
+  "describe": {
+    "columns": [
+      {
+        "name": "director!",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "count!: i64",
+        "ordinal": 1,
+        "type_info": "Integer"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      true,
+      false
+    ]
+  },
+  "hash": "aca9e7aaa32c23b4de3f5048d60340e978d31a36be9121da3c59378f2fc1ed8e"
+}

.sqlx/query-ae983138ad90fda3794b784fbf62c31fddcf182850782e9bfbc4ff3ee8b7d4bb.json

@@ -0,0 +1,62 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, movie_id, user_id, rating, comment, watched_at, created_at, remote_actor_url\n             FROM reviews WHERE id = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "remote_actor_url",
+        "ordinal": 7,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "ae983138ad90fda3794b784fbf62c31fddcf182850782e9bfbc4ff3ee8b7d4bb"
+}

.sqlx/query-cca022ac6275f2b1aaf63a14420897074c8ff4cdd1d3e9a13ef4b9dd5346d12a.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "INSERT INTO reviews (id, movie_id, user_id, rating, comment, watched_at, created_at, remote_actor_url)\n             VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 8
+    },
+    "nullable": []
+  },
+  "hash": "cca022ac6275f2b1aaf63a14420897074c8ff4cdd1d3e9a13ef4b9dd5346d12a"
+}

.sqlx/query-d5d2a81306488a8cee5654cea7e14d76d76ecc7d2190ffb73d12bec2874111d2.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.director\n             FROM reviews r\n             INNER JOIN movies m ON m.id = r.movie_id\n             WHERE r.user_id = ? AND m.director IS NOT NULL\n             GROUP BY m.director\n             ORDER BY COUNT(*) DESC\n             LIMIT 1",
+  "describe": {
+    "columns": [
+      {
+        "name": "director",
+        "ordinal": 0,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      true
+    ]
+  },
+  "hash": "d5d2a81306488a8cee5654cea7e14d76d76ecc7d2190ffb73d12bec2874111d2"
+}

.sqlx/query-e431381ad41c1c2f7b9c89509d5e3f4c19cb52dcfff66772145cd80c53c16883.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "DELETE FROM movies WHERE id = ?",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": []
+  },
+  "hash": "e431381ad41c1c2f7b9c89509d5e3f4c19cb52dcfff66772145cd80c53c16883"
+}

.sqlx/query-e51c6da943bd326a09632aa0cfd30c4f15ca554e229778b6cfa04889b7231b36.json

@@ -0,0 +1,38 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, email, username, password_hash FROM users WHERE id = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "email",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "username",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "password_hash",
+        "ordinal": 3,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      true,
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "e51c6da943bd326a09632aa0cfd30c4f15ca554e229778b6cfa04889b7231b36"
+}

.sqlx/query-f84e5483ca4210aec67b38cc1a9de4a42c12891025236abc48ea4f175292a6cc.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "DELETE FROM reviews WHERE id = ?",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": []
+  },
+  "hash": "f84e5483ca4210aec67b38cc1a9de4a42c12891025236abc48ea4f175292a6cc"
+}

.sqlx/query-fdd5b522f26b5e0ce62f76c774fbb606fd9ee9884f4457831f693a0df3609317.json

@@ -0,0 +1,32 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT strftime('%Y-%m', watched_at) AS \"month!\",\n                          AVG(CAST(rating AS REAL)) AS \"avg_rating!: f64\",\n                          COUNT(*) AS \"count!: i64\"\n                   FROM reviews\n                   WHERE user_id = ? AND watched_at >= datetime('now', '-12 months')\n                   GROUP BY \"month!\"\n                   ORDER BY \"month!\" ASC",
+  "describe": {
+    "columns": [
+      {
+        "name": "month!",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "avg_rating!: f64",
+        "ordinal": 1,
+        "type_info": "Float"
+      },
+      {
+        "name": "count!: i64",
+        "ordinal": 2,
+        "type_info": "Integer"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      true,
+      false,
+      false
+    ]
+  },
+  "hash": "fdd5b522f26b5e0ce62f76c774fbb606fd9ee9884f4457831f693a0df3609317"
+}

Cargo.toml

@@ -1,18 +1,25 @@
 [workspace]
 members = [
     "crates/adapters/auth",
+    "crates/adapters/event-publisher",
     "crates/adapters/metadata",
+    "crates/adapters/poster-fetcher",
+    "crates/adapters/poster-storage",
     "crates/adapters/rss",
     "crates/adapters/sqlite",
+    "crates/adapters/template-askama",
+    "crates/adapters/activitypub",
+    "crates/adapters/activitypub-base",
     "crates/application",
-    "crates/common",
     "crates/domain",
     "crates/presentation",
+    "crates/tui",
 ]
 resolver = "2"
 
 [workspace.dependencies]
 tokio = { version = "1.0", features = ["full"] }
+dotenvy = "0.15"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 anyhow = "1.0"
@@ -20,14 +27,27 @@ thiserror = "2.0"
 tracing = "0.1"
 tracing-subscriber = { version = "0.3.23", features = ["env-filter"] }
 async-trait = "0.1"
-uuid = { version = "1.23.0", features = ["v4", "serde"] }
+uuid = { version = "1.23.0", features = ["v4", "v5", "serde"] }
 chrono = { version = "0.4", features = ["serde"] }
+sqlx = { version = "0.8.6", features = [
+    "runtime-tokio-rustls",
+    "sqlite",
+    "uuid",
+    "macros",
+] }
+reqwest = { version = "0.13", features = ["json", "query"] }
+object_store = { version = "0.11", features = ["aws"] }
 
 domain = { path = "crates/domain" }
-common = { path = "crates/common" }
 application = { path = "crates/application" }
 presentation = { path = "crates/presentation" }
 auth = { path = "crates/adapters/auth" }
 metadata = { path = "crates/adapters/metadata" }
+poster-fetcher = { path = "crates/adapters/poster-fetcher" }
+poster-storage = { path = "crates/adapters/poster-storage" }
+event-publisher = { path = "crates/adapters/event-publisher" }
 rss = { path = "crates/adapters/rss" }
 sqlite = { path = "crates/adapters/sqlite" }
+template-askama = { path = "crates/adapters/template-askama" }
+activitypub = { path = "crates/adapters/activitypub" }
+activitypub-base = { path = "crates/adapters/activitypub-base" }

Dockerfile

@@ -0,0 +1,68 @@
+# ----- build -----
+FROM rust:slim-bookworm AS builder
+
+RUN apt-get update && apt-get install -y --no-install-recommends sqlite3 && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /build
+
+# Cache dependency compilation separately from source
+COPY Cargo.toml Cargo.lock ./
+COPY crates/adapters/activitypub/Cargo.toml       crates/adapters/activitypub/Cargo.toml
+COPY crates/adapters/activitypub-base/Cargo.toml  crates/adapters/activitypub-base/Cargo.toml
+COPY crates/adapters/auth/Cargo.toml              crates/adapters/auth/Cargo.toml
+COPY crates/adapters/event-publisher/Cargo.toml   crates/adapters/event-publisher/Cargo.toml
+COPY crates/adapters/metadata/Cargo.toml          crates/adapters/metadata/Cargo.toml
+COPY crates/adapters/poster-fetcher/Cargo.toml    crates/adapters/poster-fetcher/Cargo.toml
+COPY crates/adapters/poster-storage/Cargo.toml    crates/adapters/poster-storage/Cargo.toml
+COPY crates/adapters/rss/Cargo.toml               crates/adapters/rss/Cargo.toml
+COPY crates/adapters/sqlite/Cargo.toml            crates/adapters/sqlite/Cargo.toml
+COPY crates/adapters/template-askama/Cargo.toml   crates/adapters/template-askama/Cargo.toml
+COPY crates/application/Cargo.toml                crates/application/Cargo.toml
+COPY crates/domain/Cargo.toml                     crates/domain/Cargo.toml
+COPY crates/presentation/Cargo.toml               crates/presentation/Cargo.toml
+COPY crates/tui/Cargo.toml                        crates/tui/Cargo.toml
+
+# Stub every crate so cargo can resolve and fetch deps
+RUN find crates -name "Cargo.toml" | sed 's|/Cargo.toml||' | \
+    xargs -I{} sh -c 'mkdir -p {}/src && echo "fn main(){}" > {}/src/main.rs && echo "" > {}/src/lib.rs'
+
+RUN cargo fetch
+
+# Now copy real sources (invalidates cache only on source changes)
+COPY crates ./crates
+
+# sqlx macros verify queries at compile time; create a real DB from migrations
+RUN sqlite3 /build/dev.db \
+      < crates/adapters/sqlite/migrations/0001_initial.sql && \
+    sqlite3 /build/dev.db \
+      < crates/adapters/sqlite/migrations/0002_users.sql && \
+    sqlite3 /build/dev.db \
+      < crates/adapters/sqlite/migrations/0003_activitypub.sql && \
+    sqlite3 /build/dev.db \
+      < crates/adapters/sqlite/migrations/0004_username.sql && \
+    sqlite3 /build/dev.db \
+      < crates/adapters/sqlite/migrations/0005_activitypub_v2.sql && \
+    sqlite3 /build/dev.db \
+      < crates/adapters/sqlite/migrations/0006_follower_activity_id.sql
+
+ENV DATABASE_URL=sqlite:///build/dev.db
+
+RUN cargo build --release -p presentation
+
+# ----- runtime -----
+FROM debian:bookworm-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates \
+ && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY --from=builder /build/target/release/presentation ./presentation
+COPY static ./static
+
+EXPOSE 3000
+
+ENV RUST_LOG=presentation=info,tower_http=info
+
+CMD ["./presentation"]

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Gabriel Kaszewski
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,87 @@
+# Movies Diary
+
+A self-hosted, server-side rendered movie logging system. Built in Rust — no JavaScript, no SPA, just HTML forms and an RSS feed. Designed to run as a lightweight widget embedded on a personal site.
+
+## Features
+
+- Log movies with a TMDB/OMDb ID and a 0–5 rating
+- Immutable append-only viewing ledger (tracks re-watches)
+- Background poster fetching and storage (local filesystem or S3-compatible)
+- RSS/Atom feed for public subscription
+- JWT authentication via cookie (HTML) or Bearer token (REST API)
+- Zero JavaScript
+
+## Architecture
+
+Hexagonal (Ports & Adapters) with Domain-Driven Design:
+
+```
+domain        — pure types and trait definitions, no external deps
+application   — use cases / business logic orchestration
+presentation  — Axum HTTP router, wires all adapters together
+adapters/
+  auth        — JWT issuance and validation (Argon2 passwords)
+  sqlite      — SQLite repository via sqlx
+  metadata    — OMDb HTTP client
+  poster-fetcher — downloads poster images
+  poster-storage — uploads posters to local filesystem or S3-compatible storage
+  template-askama — Askama HTML rendering
+  rss         — RSS/Atom feed generation
+  event-publisher — async event channel for background poster sync
+```
+
+## Prerequisites
+
+- Rust (stable, 2024 edition)
+- SQLite
+- Poster storage: local filesystem (zero deps) or an S3-compatible object store (e.g. MinIO)
+- An [OMDb API key](https://www.omdbapi.com/apikey.aspx)
+
+## Environment Variables
+
+A `.env.example` file is provided at the repo root — copy it to `.env` and fill in your values. Key variables:
+
+```env
+# Database
+DATABASE_URL=sqlite://movies.db
+
+# Authentication
+JWT_SECRET=change-me
+
+# OMDb metadata
+OMDB_API_KEY=your-key
+
+# Poster storage — pick one backend:
+
+# Option A: local filesystem (zero deps)
+POSTER_STORAGE_BACKEND=local
+POSTER_STORAGE_PATH=./posters
+
+# Option B: S3-compatible (MinIO, AWS S3, etc.)
+# POSTER_STORAGE_BACKEND=s3
+# MINIO_ENDPOINT=http://localhost:9000
+# MINIO_BUCKET=posters
+# MINIO_REGION=minio
+# MINIO_ACCESS_KEY_ID=minioadmin
+# MINIO_SECRET_ACCESS_KEY=minioadmin
+```
+
+See `.env.example` for optional variables (rate limiting, logging, host/port, etc.).
+
+## Run
+
+```bash
+cargo run -p presentation
+```
+
+Server listens on `0.0.0.0:3000`.
+
+## Test
+
+```bash
+cargo test
+```
+
+## License
+
+MIT License. See [LICENSE](LICENSE).

crates/adapters/activitypub-base/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "activitypub-base"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+tokio = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+reqwest = { workspace = true }
+uuid = { workspace = true }
+chrono = { workspace = true }
+thiserror = { workspace = true }
+anyhow = { workspace = true }
+tracing = { workspace = true }
+async-trait = { workspace = true }
+
+activitypub_federation = "0.7.0-beta.11"
+url = { version = "2", features = ["serde"] }
+enum_delegate = "0.2"
+axum = "0.8"

crates/adapters/activitypub-base/src/activities.rs

@@ -0,0 +1,341 @@
+use activitypub_federation::{
+    config::Data,
+    fetch::object_id::ObjectId,
+    kinds::activity::{AcceptType, CreateType, DeleteType, FollowType, RejectType, UndoType, UpdateType},
+    traits::Activity,
+};
+use serde::{Deserialize, Serialize};
+use url::Url;
+
+use crate::actors::DbActor;
+use crate::data::FederationData;
+use crate::error::Error;
+use crate::repository::{FollowerStatus, FollowingStatus};
+
+// --- Follow ---
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct FollowActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: FollowType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: ObjectId<DbActor>,
+}
+
+#[async_trait::async_trait]
+impl Activity for FollowActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let target_url = self.object.inner();
+        let target_domain = match (target_url.host_str(), target_url.port()) {
+            (Some(host), Some(port)) => format!("{}:{}", host, port),
+            (Some(host), None) => host.to_string(),
+            _ => return Err(Error::bad_request(anyhow::anyhow!("invalid follow target URL"))),
+        };
+        if target_domain != data.domain {
+            return Err(Error::bad_request(anyhow::anyhow!("follow target is not a local actor")));
+        }
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let _follower = self.actor.dereference(data).await?;
+        let local_actor = self.object.dereference(data).await?;
+
+        data.federation_repo
+            .add_follower(
+                local_actor.user_id,
+                self.actor.inner().as_str(),
+                FollowerStatus::Pending,
+                self.id.as_str(),
+            )
+            .await?;
+
+        tracing::info!(
+            follower = %self.actor.inner(),
+            local_user = %local_actor.user_id,
+            "follow request pending approval"
+        );
+        Ok(())
+    }
+}
+
+// --- Accept ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct AcceptActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: AcceptType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: FollowActivity,
+}
+
+#[async_trait::async_trait]
+impl Activity for AcceptActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let local_user_id = crate::urls::extract_user_id_from_url(self.object.actor.inner())
+            .ok_or_else(|| Error::bad_request(anyhow::anyhow!("invalid actor URL in Follow")))?;
+        data.federation_repo
+            .update_following_status(local_user_id, self.actor.inner().as_str(), FollowingStatus::Accepted)
+            .await?;
+        tracing::info!(remote_actor = %self.actor.inner(), "follow accepted by remote");
+        Ok(())
+    }
+}
+
+// --- Reject ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct RejectActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: RejectType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: FollowActivity,
+}
+
+#[async_trait::async_trait]
+impl Activity for RejectActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        if let Some(user_id) = crate::urls::extract_user_id_from_url(self.object.actor.inner()) {
+            data.federation_repo
+                .remove_following(user_id, self.actor.inner().as_str())
+                .await?;
+        }
+        tracing::info!(actor = %self.actor.inner(), "follow rejected");
+        Ok(())
+    }
+}
+
+// --- Undo ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct UndoActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: UndoType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: FollowActivity,
+}
+
+#[async_trait::async_trait]
+impl Activity for UndoActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        if let Some(user_id) = crate::urls::extract_user_id_from_url(self.object.object.inner()) {
+            data.federation_repo
+                .remove_follower(user_id, self.actor.inner().as_str())
+                .await?;
+        }
+        data.object_handler
+            .on_actor_removed(self.actor.inner())
+            .await
+            .map_err(|e| Error::from(anyhow::anyhow!(e)))?;
+        tracing::info!(actor = %self.actor.inner(), "unfollowed");
+        Ok(())
+    }
+}
+
+// --- Create ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CreateActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: CreateType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: serde_json::Value,
+}
+
+#[async_trait::async_trait]
+impl Activity for CreateActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let ap_id = self.id.clone();
+        let actor_url = self.actor.inner().clone();
+        data.object_handler
+            .on_create(&ap_id, &actor_url, self.object)
+            .await
+            .map_err(|e| Error::from(anyhow::anyhow!(e)))?;
+        tracing::info!(actor = %actor_url, "received create activity");
+        Ok(())
+    }
+}
+
+// --- Delete ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct DeleteActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: DeleteType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: Url,
+}
+
+#[async_trait::async_trait]
+impl Activity for DeleteActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let actor_url = self.actor.inner().clone();
+        data.object_handler
+            .on_delete(&self.object, &actor_url)
+            .await
+            .map_err(|e| Error::from(anyhow::anyhow!(e)))?;
+        tracing::info!(object = %self.object, "received delete activity");
+        Ok(())
+    }
+}
+
+// --- Update ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct UpdateActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: UpdateType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: serde_json::Value,
+}
+
+#[async_trait::async_trait]
+impl Activity for UpdateActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let ap_id = self.id.clone();
+        let actor_url = self.actor.inner().clone();
+        data.object_handler
+            .on_update(&ap_id, &actor_url, self.object)
+            .await
+            .map_err(|e| Error::from(anyhow::anyhow!(e)))?;
+        tracing::info!(actor = %actor_url, "received update activity");
+        Ok(())
+    }
+}
+
+// --- Inbox dispatch enum ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(tag = "type")]
+#[enum_delegate::implement(Activity)]
+pub enum InboxActivities {
+    #[serde(rename = "Follow")]
+    Follow(FollowActivity),
+    #[serde(rename = "Accept")]
+    Accept(AcceptActivity),
+    #[serde(rename = "Reject")]
+    Reject(RejectActivity),
+    #[serde(rename = "Undo")]
+    Undo(UndoActivity),
+    #[serde(rename = "Create")]
+    Create(CreateActivity),
+    #[serde(rename = "Delete")]
+    Delete(DeleteActivity),
+    #[serde(rename = "Update")]
+    Update(UpdateActivity),
+}

crates/adapters/activitypub-base/src/actor_handler.rs

@@ -0,0 +1,21 @@
+use activitypub_federation::{
+    axum::json::FederationJson, config::Data, protocol::context::WithContext, traits::Object,
+};
+use axum::extract::Path;
+
+use crate::actors::{get_local_actor, Person};
+use crate::data::FederationData;
+use crate::error::Error;
+
+pub async fn actor_handler(
+    Path(user_id_str): Path<String>,
+    data: Data<FederationData>,
+) -> Result<FederationJson<WithContext<Person>>, Error> {
+    let uuid = uuid::Uuid::parse_str(&user_id_str)
+        .map_err(|_| Error::bad_request(anyhow::anyhow!("invalid user id")))?;
+
+    let db_actor = get_local_actor(uuid, &data).await?;
+    let person = db_actor.into_json(&data).await?;
+
+    Ok(FederationJson(WithContext::new_default(person)))
+}

crates/adapters/activitypub-base/src/actors.rs

@@ -0,0 +1,230 @@
+use activitypub_federation::{
+    config::Data,
+    fetch::object_id::ObjectId,
+    http_signatures::generate_actor_keypair,
+    kinds::actor::PersonType,
+    protocol::{public_key::PublicKey, verification::verify_domains_match},
+    traits::{Actor, Object},
+};
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+use url::Url;
+
+use crate::data::FederationData;
+use crate::error::Error;
+use crate::repository::RemoteActor;
+
+#[derive(Debug, Clone)]
+pub struct DbActor {
+    pub user_id: uuid::Uuid,
+    pub username: String,
+    pub public_key_pem: String,
+    pub private_key_pem: Option<String>,
+    pub inbox_url: Url,
+    pub outbox_url: Url,
+    pub followers_url: Url,
+    pub following_url: Url,
+    pub ap_id: Url,
+    pub last_refreshed_at: DateTime<Utc>,
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Person {
+    #[serde(rename = "type")]
+    kind: PersonType,
+    id: ObjectId<DbActor>,
+    preferred_username: String,
+    inbox: Url,
+    outbox: Url,
+    followers: Url,
+    following: Url,
+    public_key: PublicKey,
+    name: Option<String>,
+}
+
+pub async fn get_local_actor(
+    user_id: uuid::Uuid,
+    data: &Data<FederationData>,
+) -> Result<DbActor, Error> {
+    let user = data
+        .user_repo
+        .find_by_id(user_id)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found: {}", user_id)))?;
+
+    let (public_key, private_key) = match data
+        .federation_repo
+        .get_local_actor_keypair(user_id)
+        .await?
+    {
+        Some(kp) => kp,
+        None => {
+            let kp = generate_actor_keypair()?;
+            data.federation_repo
+                .save_local_actor_keypair(
+                    user_id,
+                    kp.public_key.clone(),
+                    kp.private_key.clone(),
+                )
+                .await?;
+            (kp.public_key, kp.private_key)
+        }
+    };
+
+    let ap_id = crate::urls::actor_url(&data.base_url, user_id);
+    let inbox_url = Url::parse(&format!("{}/inbox", &ap_id)).expect("valid inbox url");
+    let outbox_url = Url::parse(&format!("{}/outbox", &ap_id)).expect("valid outbox url");
+    let followers_url = Url::parse(&format!("{}/followers", &ap_id)).expect("valid followers url");
+    let following_url = Url::parse(&format!("{}/following", &ap_id)).expect("valid following url");
+
+    Ok(DbActor {
+        user_id,
+        username: user.username,
+        public_key_pem: public_key,
+        private_key_pem: Some(private_key),
+        inbox_url,
+        outbox_url,
+        followers_url,
+        following_url,
+        ap_id,
+        last_refreshed_at: Utc::now(),
+    })
+}
+
+#[async_trait::async_trait]
+impl Object for DbActor {
+    type DataType = FederationData;
+    type Kind = Person;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.ap_id
+    }
+
+    fn last_refreshed_at(&self) -> Option<DateTime<Utc>> {
+        Some(self.last_refreshed_at)
+    }
+
+    async fn read_from_id(
+        object_id: Url,
+        data: &Data<Self::DataType>,
+    ) -> Result<Option<Self>, Self::Error> {
+        let user_id = match crate::urls::extract_user_id_from_url(&object_id) {
+            Some(id) => id,
+            None => return Ok(None),
+        };
+        let user = match data.user_repo.find_by_id(user_id).await {
+            Ok(Some(u)) => u,
+            _ => return Ok(None),
+        };
+
+        let keypair = data
+            .federation_repo
+            .get_local_actor_keypair(user_id)
+            .await?;
+
+        let (public_key, private_key) = match keypair {
+            Some(kp) => (kp.0, Some(kp.1)),
+            None => return Ok(None),
+        };
+
+        let ap_id = crate::urls::actor_url(&data.base_url, user_id);
+        let inbox_url = Url::parse(&format!("{}/inbox", &ap_id)).expect("valid url");
+        let outbox_url = Url::parse(&format!("{}/outbox", &ap_id)).expect("valid url");
+        let followers_url = Url::parse(&format!("{}/followers", &ap_id)).expect("valid url");
+        let following_url = Url::parse(&format!("{}/following", &ap_id)).expect("valid url");
+
+        Ok(Some(DbActor {
+            user_id,
+            username: user.username,
+            public_key_pem: public_key,
+            private_key_pem: private_key,
+            inbox_url,
+            outbox_url,
+            followers_url,
+            following_url,
+            ap_id,
+            last_refreshed_at: Utc::now(),
+        }))
+    }
+
+    async fn into_json(self, _data: &Data<Self::DataType>) -> Result<Self::Kind, Self::Error> {
+        let public_key = PublicKey {
+            id: format!("{}#main-key", &self.ap_id),
+            owner: self.ap_id.clone(),
+            public_key_pem: self.public_key_pem.clone(),
+        };
+
+        Ok(Person {
+            kind: Default::default(),
+            id: self.ap_id.clone().into(),
+            preferred_username: self.username.clone(),
+            inbox: self.inbox_url.clone(),
+            outbox: self.outbox_url.clone(),
+            followers: self.followers_url.clone(),
+            following: self.following_url.clone(),
+            public_key,
+            name: Some(self.username.clone()),
+        })
+    }
+
+    async fn verify(
+        json: &Self::Kind,
+        expected_domain: &Url,
+        _data: &Data<Self::DataType>,
+    ) -> Result<(), Self::Error> {
+        verify_domains_match(json.id.inner(), expected_domain)?;
+        Ok(())
+    }
+
+    async fn from_json(
+        json: Self::Kind,
+        data: &Data<Self::DataType>,
+    ) -> Result<Self, Self::Error> {
+        let actor = RemoteActor {
+            url: json.id.inner().to_string(),
+            handle: json.preferred_username.clone(),
+            inbox_url: json.inbox.to_string(),
+            shared_inbox_url: None,
+            display_name: json.name.clone(),
+        };
+        data.federation_repo.upsert_remote_actor(actor).await?;
+
+        let url_str = json.id.inner().to_string();
+        let user_id = uuid::Uuid::new_v5(&uuid::Uuid::NAMESPACE_URL, url_str.as_bytes());
+        let ap_id = json.id.inner().clone();
+        let inbox_url = json.inbox.clone();
+        let outbox_url = json.outbox.clone();
+        let followers_url = json.followers.clone();
+        let following_url = json.following.clone();
+
+        Ok(DbActor {
+            user_id,
+            username: json.preferred_username.clone(),
+            public_key_pem: json.public_key.public_key_pem,
+            private_key_pem: None,
+            inbox_url,
+            outbox_url,
+            followers_url,
+            following_url,
+            ap_id,
+            last_refreshed_at: Utc::now(),
+        })
+    }
+}
+
+impl Actor for DbActor {
+    fn public_key_pem(&self) -> &str {
+        &self.public_key_pem
+    }
+
+    fn private_key_pem(&self) -> Option<String> {
+        self.private_key_pem.clone()
+    }
+
+    fn inbox(&self) -> Url {
+        self.inbox_url.clone()
+    }
+}

crates/adapters/activitypub-base/src/content.rs

@@ -0,0 +1,34 @@
+use async_trait::async_trait;
+use url::Url;
+
+#[async_trait]
+pub trait ApObjectHandler: Send + Sync {
+    /// Returns (ap_id, serialized object) for all local content owned by this user.
+    /// Used by outbox (count) and backfill (delivery). Must only return locally-authored content.
+    async fn get_local_objects_for_user(
+        &self,
+        user_id: uuid::Uuid,
+    ) -> anyhow::Result<Vec<(Url, serde_json::Value)>>;
+
+    /// Incoming Create activity — persist remote content.
+    async fn on_create(
+        &self,
+        ap_id: &Url,
+        actor_url: &Url,
+        object: serde_json::Value,
+    ) -> anyhow::Result<()>;
+
+    /// Incoming Update activity — update existing remote content.
+    async fn on_update(
+        &self,
+        ap_id: &Url,
+        actor_url: &Url,
+        object: serde_json::Value,
+    ) -> anyhow::Result<()>;
+
+    /// Incoming Delete activity — remove specific remote content.
+    async fn on_delete(&self, ap_id: &Url, actor_url: &Url) -> anyhow::Result<()>;
+
+    /// Actor unfollowed/was removed — clean up all their remote content.
+    async fn on_actor_removed(&self, actor_url: &Url) -> anyhow::Result<()>;
+}

crates/adapters/activitypub-base/src/data.rs

@@ -0,0 +1,38 @@
+use std::sync::Arc;
+
+use crate::content::ApObjectHandler;
+use crate::repository::FederationRepository;
+use crate::user::ApUserRepository;
+
+#[derive(Clone)]
+pub struct FederationData {
+    pub(crate) federation_repo: Arc<dyn FederationRepository>,
+    pub(crate) user_repo: Arc<dyn ApUserRepository>,
+    pub(crate) object_handler: Arc<dyn ApObjectHandler>,
+    pub(crate) base_url: String,
+    pub(crate) domain: String,
+}
+
+impl FederationData {
+    pub fn new(
+        federation_repo: Arc<dyn FederationRepository>,
+        user_repo: Arc<dyn ApUserRepository>,
+        object_handler: Arc<dyn ApObjectHandler>,
+        base_url: String,
+    ) -> Self {
+        let domain = base_url
+            .trim_start_matches("https://")
+            .trim_start_matches("http://")
+            .split('/')
+            .next()
+            .unwrap_or("")
+            .to_string();
+        Self {
+            federation_repo,
+            user_repo,
+            object_handler,
+            base_url,
+            domain,
+        }
+    }
+}

crates/adapters/activitypub-base/src/error.rs

@@ -0,0 +1,48 @@
+use std::fmt::{Display, Formatter};
+
+use axum::http::StatusCode;
+
+#[derive(Debug)]
+pub struct Error(pub(crate) anyhow::Error, pub(crate) StatusCode);
+
+impl Error {
+    pub fn not_found(e: impl Into<anyhow::Error>) -> Self {
+        Self(e.into(), StatusCode::NOT_FOUND)
+    }
+
+    pub fn bad_request(e: impl Into<anyhow::Error>) -> Self {
+        Self(e.into(), StatusCode::BAD_REQUEST)
+    }
+}
+
+impl Display for Error {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        std::fmt::Display::fmt(&self.0, f)
+    }
+}
+
+impl<T> From<T> for Error
+where
+    T: Into<anyhow::Error>,
+{
+    fn from(t: T) -> Self {
+        Error(t.into(), StatusCode::INTERNAL_SERVER_ERROR)
+    }
+}
+
+impl axum::response::IntoResponse for Error {
+    fn into_response(self) -> axum::response::Response {
+        let status = self.1;
+        if status.is_server_error() {
+            tracing::error!(error = %self.0, status = status.as_u16(), "federation error");
+        } else {
+            tracing::debug!(error = %self.0, status = status.as_u16(), "federation response");
+        }
+        let body = if status.is_server_error() {
+            "internal server error".to_string()
+        } else {
+            self.0.to_string()
+        };
+        (status, body).into_response()
+    }
+}

crates/adapters/activitypub-base/src/federation.rs

@@ -0,0 +1,50 @@
+use activitypub_federation::config::{Data, FederationConfig, FederationMiddleware, UrlVerifier};
+use activitypub_federation::error::Error as FedError;
+use url::Url;
+
+use crate::data::FederationData;
+
+#[derive(Clone)]
+struct PermissiveVerifier;
+
+#[async_trait::async_trait]
+impl UrlVerifier for PermissiveVerifier {
+    async fn verify(&self, _url: &Url) -> Result<(), FedError> {
+        Ok(())
+    }
+}
+
+#[derive(Clone)]
+pub struct ApFederationConfig(pub FederationConfig<FederationData>);
+
+impl ApFederationConfig {
+    pub async fn new(data: FederationData, debug: bool) -> anyhow::Result<Self> {
+        let config = if debug {
+            FederationConfig::builder()
+                .domain(&data.domain)
+                .app_data(data)
+                .debug(true)
+                .http_signature_compat(true)
+                .url_verifier(Box::new(PermissiveVerifier))
+                .build()
+                .await?
+        } else {
+            FederationConfig::builder()
+                .domain(&data.domain)
+                .app_data(data)
+                .debug(false)
+                .http_signature_compat(true)
+                .build()
+                .await?
+        };
+        Ok(Self(config))
+    }
+
+    pub fn to_request_data(&self) -> Data<FederationData> {
+        self.0.to_request_data()
+    }
+
+    pub fn middleware(&self) -> FederationMiddleware<FederationData> {
+        FederationMiddleware::new(self.0.clone())
+    }
+}

crates/adapters/activitypub-base/src/followers_handler.rs

@@ -0,0 +1,71 @@
+use activitypub_federation::{axum::json::FederationJson, config::Data};
+use axum::extract::Path;
+use serde_json::json;
+
+use crate::data::FederationData;
+use crate::error::Error;
+use crate::repository::FollowerStatus;
+
+fn ordered_collection(id: String, total: usize, items: Vec<String>) -> serde_json::Value {
+    json!({
+        "@context": "https://www.w3.org/ns/activitystreams",
+        "type": "OrderedCollection",
+        "id": id,
+        "totalItems": total,
+        "orderedItems": items,
+    })
+}
+
+pub async fn followers_handler(
+    Path(user_id_str): Path<String>,
+    data: Data<FederationData>,
+) -> Result<FederationJson<serde_json::Value>, Error> {
+    let user_id = uuid::Uuid::parse_str(&user_id_str)
+        .map_err(|_| Error::bad_request(anyhow::anyhow!("invalid user id")))?;
+
+    data.user_repo
+        .find_by_id(user_id)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found")))?;
+
+    let followers = data
+        .federation_repo
+        .get_followers(user_id)
+        .await
+        .map_err(Error::from)?;
+
+    let items: Vec<String> = followers
+        .into_iter()
+        .filter(|f| f.status == FollowerStatus::Accepted)
+        .map(|f| f.actor.url)
+        .collect();
+
+    let id = format!("{}/users/{}/followers", data.base_url, user_id_str);
+    Ok(FederationJson(ordered_collection(id, items.len(), items)))
+}
+
+pub async fn following_handler(
+    Path(user_id_str): Path<String>,
+    data: Data<FederationData>,
+) -> Result<FederationJson<serde_json::Value>, Error> {
+    let user_id = uuid::Uuid::parse_str(&user_id_str)
+        .map_err(|_| Error::bad_request(anyhow::anyhow!("invalid user id")))?;
+
+    data.user_repo
+        .find_by_id(user_id)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found")))?;
+
+    let following = data
+        .federation_repo
+        .get_following(user_id)
+        .await
+        .map_err(Error::from)?;
+
+    let items: Vec<String> = following.into_iter().map(|a| a.url).collect();
+
+    let id = format!("{}/users/{}/following", data.base_url, user_id_str);
+    Ok(FederationJson(ordered_collection(id, items.len(), items)))
+}

crates/adapters/activitypub-base/src/inbox.rs

@@ -0,0 +1,20 @@
+use activitypub_federation::{
+    axum::inbox::{receive_activity, ActivityData},
+    config::Data,
+    protocol::context::WithContext,
+};
+
+use crate::activities::InboxActivities;
+use crate::actors::DbActor;
+use crate::data::FederationData;
+use crate::error::Error;
+
+pub async fn inbox_handler(
+    data: Data<FederationData>,
+    activity_data: ActivityData,
+) -> Result<(), Error> {
+    receive_activity::<WithContext<InboxActivities>, DbActor, FederationData>(
+        activity_data, &data,
+    )
+    .await
+}

crates/adapters/activitypub-base/src/lib.rs

@@ -0,0 +1,23 @@
+pub mod activities;
+pub mod actor_handler;
+pub mod actors;
+pub mod content;
+pub mod data;
+pub mod error;
+pub mod federation;
+pub mod followers_handler;
+pub mod inbox;
+pub mod outbox;
+pub mod repository;
+pub mod service;
+pub mod user;
+pub mod webfinger;
+pub(crate) mod urls;
+
+pub use content::ApObjectHandler;
+pub use data::FederationData;
+pub use error::Error;
+pub use federation::ApFederationConfig;
+pub use repository::{FederationRepository, Follower, FollowerStatus, FollowingStatus, RemoteActor};
+pub use service::ActivityPubService;
+pub use user::{ApUser, ApUserRepository};

crates/adapters/activitypub-base/src/outbox.rs

@@ -0,0 +1,48 @@
+use activitypub_federation::{axum::json::FederationJson, config::Data};
+use axum::extract::Path;
+use serde::{Deserialize, Serialize};
+
+use crate::data::FederationData;
+use crate::error::Error;
+
+#[derive(Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct OrderedCollection {
+    #[serde(rename = "@context")]
+    context: String,
+    #[serde(rename = "type")]
+    kind: String,
+    id: String,
+    total_items: u64,
+    ordered_items: Vec<serde_json::Value>,
+}
+
+pub async fn outbox_handler(
+    Path(user_id_str): Path<String>,
+    data: Data<FederationData>,
+) -> Result<FederationJson<OrderedCollection>, Error> {
+    let uuid = uuid::Uuid::parse_str(&user_id_str)
+        .map_err(|_| Error::bad_request(anyhow::anyhow!("invalid user id")))?;
+
+    data.user_repo
+        .find_by_id(uuid)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found")))?;
+
+    let objects = data
+        .object_handler
+        .get_local_objects_for_user(uuid)
+        .await
+        .map_err(|e| Error::from(anyhow::anyhow!(e)))?;
+
+    let outbox_url = format!("{}/users/{}/outbox", data.base_url, user_id_str);
+
+    Ok(FederationJson(OrderedCollection {
+        context: "https://www.w3.org/ns/activitystreams".to_string(),
+        kind: "OrderedCollection".to_string(),
+        id: outbox_url,
+        total_items: objects.len() as u64,
+        ordered_items: vec![],
+    }))
+}

crates/adapters/activitypub-base/src/repository.rs

@@ -0,0 +1,50 @@
+use anyhow::Result;
+use async_trait::async_trait;
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum FollowerStatus {
+    Pending,
+    Accepted,
+    Rejected,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum FollowingStatus {
+    Pending,
+    Accepted,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct RemoteActor {
+    pub url: String,
+    pub handle: String,
+    pub inbox_url: String,
+    pub shared_inbox_url: Option<String>,
+    pub display_name: Option<String>,
+}
+
+#[derive(Debug, Clone)]
+pub struct Follower {
+    pub actor: RemoteActor,
+    pub status: FollowerStatus,
+}
+
+#[async_trait]
+pub trait FederationRepository: Send + Sync {
+    async fn add_follower(&self, local_user_id: uuid::Uuid, remote_actor_url: &str, status: FollowerStatus, follow_activity_id: &str) -> Result<()>;
+    async fn get_follower_follow_activity_id(&self, local_user_id: uuid::Uuid, remote_actor_url: &str) -> Result<Option<String>>;
+    async fn remove_follower(&self, local_user_id: uuid::Uuid, remote_actor_url: &str) -> Result<()>;
+    async fn get_followers(&self, local_user_id: uuid::Uuid) -> Result<Vec<Follower>>;
+    async fn update_follower_status(&self, local_user_id: uuid::Uuid, remote_actor_url: &str, status: FollowerStatus) -> Result<()>;
+    async fn add_following(&self, local_user_id: uuid::Uuid, actor: RemoteActor, follow_activity_id: &str) -> Result<()>;
+    async fn get_follow_activity_id(&self, local_user_id: uuid::Uuid, remote_actor_url: &str) -> Result<Option<String>>;
+    async fn remove_following(&self, local_user_id: uuid::Uuid, actor_url: &str) -> Result<()>;
+    async fn get_following(&self, local_user_id: uuid::Uuid) -> Result<Vec<RemoteActor>>;
+    async fn count_following(&self, local_user_id: uuid::Uuid) -> Result<usize>;
+    async fn upsert_remote_actor(&self, actor: RemoteActor) -> Result<()>;
+    async fn get_remote_actor(&self, actor_url: &str) -> Result<Option<RemoteActor>>;
+    async fn get_local_actor_keypair(&self, user_id: uuid::Uuid) -> Result<Option<(String, String)>>;
+    async fn save_local_actor_keypair(&self, user_id: uuid::Uuid, public_key: String, private_key: String) -> Result<()>;
+    async fn get_pending_followers(&self, local_user_id: uuid::Uuid) -> Result<Vec<RemoteActor>>;
+    async fn update_following_status(&self, local_user_id: uuid::Uuid, remote_actor_url: &str, status: FollowingStatus) -> Result<()>;
+}

crates/adapters/activitypub-base/src/service.rs

@@ -0,0 +1,470 @@
+use std::sync::Arc;
+
+use activitypub_federation::{
+    activity_sending::SendActivityTask,
+    fetch::{object_id::ObjectId, webfinger::webfinger_resolve_actor},
+    protocol::context::WithContext,
+    traits::Actor,
+};
+use axum::{routing::get, routing::post, Router};
+use url::Url;
+
+use crate::{
+    activities::{AcceptActivity, CreateActivity, FollowActivity, RejectActivity, UndoActivity},
+    actor_handler::actor_handler,
+    actors::{get_local_actor, DbActor},
+    content::ApObjectHandler,
+    data::FederationData,
+    federation::ApFederationConfig,
+    followers_handler::{followers_handler, following_handler},
+    inbox::inbox_handler,
+    outbox::outbox_handler,
+    repository::{FederationRepository, FollowerStatus, RemoteActor},
+    user::ApUserRepository,
+    urls::activity_url,
+    webfinger::webfinger_handler,
+};
+
+pub(crate) async fn send_with_retry(
+    sends: Vec<SendActivityTask>,
+    data: &activitypub_federation::config::Data<FederationData>,
+) -> Vec<anyhow::Error> {
+    let mut failures = vec![];
+    for send in sends {
+        let mut delay = std::time::Duration::from_secs(1);
+        for attempt in 1..=3u32 {
+            match send.clone().sign_and_send(data).await {
+                Ok(()) => break,
+                Err(e) if attempt < 3 => {
+                    tracing::warn!(attempt, error = %e, "delivery failed, retrying");
+                    tokio::time::sleep(delay).await;
+                    delay *= 2;
+                }
+                Err(e) => {
+                    tracing::error!(attempt, error = %e, "delivery failed permanently");
+                    failures.push(anyhow::anyhow!(e));
+                }
+            }
+        }
+    }
+    failures
+}
+
+pub struct ActivityPubService {
+    federation_config: ApFederationConfig,
+    base_url: String,
+}
+
+impl ActivityPubService {
+    pub async fn new(
+        repo: Arc<dyn FederationRepository>,
+        user_repo: Arc<dyn ApUserRepository>,
+        object_handler: Arc<dyn ApObjectHandler>,
+        base_url: String,
+        debug: bool,
+    ) -> anyhow::Result<Self> {
+        let data = FederationData::new(repo, user_repo, object_handler, base_url.clone());
+        let federation_config = ApFederationConfig::new(data, debug).await?;
+        Ok(Self { federation_config, base_url })
+    }
+
+    pub fn federation_config(&self) -> &ApFederationConfig {
+        &self.federation_config
+    }
+
+    pub fn request_data(&self) -> activitypub_federation::config::Data<FederationData> {
+        self.federation_config.to_request_data()
+    }
+
+    pub async fn actor_json(&self, user_id_str: &str) -> anyhow::Result<String> {
+        use activitypub_federation::traits::Object;
+        let uuid = uuid::Uuid::parse_str(user_id_str)?;
+        let data = self.federation_config.to_request_data();
+        let actor = get_local_actor(uuid, &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+        let person = actor.into_json(&data).await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+        Ok(serde_json::to_string(&WithContext::new_default(person))?)
+    }
+
+    pub fn router(&self) -> Router {
+        Router::new()
+            .route("/.well-known/webfinger", get(webfinger_handler))
+            .route("/users/{user_id}", get(actor_handler))
+            .route("/users/{user_id}/inbox", post(inbox_handler))
+            .route("/users/{user_id}/outbox", get(outbox_handler))
+            .route("/users/{user_id}/followers", get(followers_handler))
+            .route("/users/{user_id}/following", get(following_handler))
+            .layer(self.federation_config.middleware())
+    }
+
+    pub async fn follow(&self, local_user_id: uuid::Uuid, handle: &str) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+
+        let remote_actor: DbActor = webfinger_resolve_actor(handle, &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let local_actor = get_local_actor(local_user_id, &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let follow_id = activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?;
+        let follow_id_str = follow_id.to_string();
+        let follow = FollowActivity {
+            id: follow_id,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: ObjectId::from(remote_actor.ap_id.clone()),
+        };
+        let follow_with_ctx = WithContext::new_default(follow);
+
+        let sends = SendActivityTask::prepare(
+            &follow_with_ctx,
+            &local_actor,
+            vec![remote_actor.inbox()],
+            &data,
+        )
+        .await?;
+        let failures = send_with_retry(sends, &data).await;
+        if !failures.is_empty() {
+            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+        }
+
+        let remote = RemoteActor {
+            url: remote_actor.ap_id.to_string(),
+            handle: remote_actor.username.clone(),
+            inbox_url: remote_actor.inbox_url.to_string(),
+            shared_inbox_url: None,
+            display_name: Some(remote_actor.username.clone()),
+        };
+        data.federation_repo
+            .add_following(local_user_id, remote, &follow_id_str)
+            .await?;
+
+        Ok(())
+    }
+
+    pub async fn unfollow(&self, local_user_id: uuid::Uuid, actor_url_str: &str) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+
+        let remote = data
+            .federation_repo
+            .get_remote_actor(actor_url_str)
+            .await?
+            .ok_or_else(|| anyhow::anyhow!("remote actor not found: {}", actor_url_str))?;
+
+        let local_actor = get_local_actor(local_user_id, &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let remote_ap_id = Url::parse(actor_url_str)?;
+        let inbox = Url::parse(&remote.inbox_url)?;
+
+        let follow_activity_id_str = data
+            .federation_repo
+            .get_follow_activity_id(local_user_id, actor_url_str)
+            .await?;
+        let follow_id = match follow_activity_id_str {
+            Some(id) => Url::parse(&id)?,
+            None => activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?,
+        };
+        let follow = FollowActivity {
+            id: follow_id,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: ObjectId::from(remote_ap_id),
+        };
+
+        let undo_id = activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?;
+        let undo = UndoActivity {
+            id: undo_id,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: follow,
+        };
+
+        let sends = SendActivityTask::prepare(
+            &WithContext::new_default(undo),
+            &local_actor,
+            vec![inbox],
+            &data,
+        )
+        .await?;
+        let failures = send_with_retry(sends, &data).await;
+        if !failures.is_empty() {
+            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+        }
+
+        data.federation_repo
+            .remove_following(local_user_id, actor_url_str)
+            .await?;
+
+        data.object_handler
+            .on_actor_removed(&Url::parse(actor_url_str)?)
+            .await?;
+
+        Ok(())
+    }
+
+    pub async fn accept_follower(
+        &self,
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+    ) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+        let local_actor = get_local_actor(local_user_id, &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let remote_actor = data
+            .federation_repo
+            .get_remote_actor(remote_actor_url)
+            .await?
+            .ok_or_else(|| anyhow::anyhow!("remote actor not found"))?;
+
+        let follow_id_str = data
+            .federation_repo
+            .get_follower_follow_activity_id(local_user_id, remote_actor_url)
+            .await?
+            .ok_or_else(|| anyhow::anyhow!("follow activity id not found for {}", remote_actor_url))?;
+        let follow_id = Url::parse(&follow_id_str)?;
+        let follow = FollowActivity {
+            id: follow_id,
+            kind: Default::default(),
+            actor: ObjectId::from(Url::parse(remote_actor_url)?),
+            object: ObjectId::from(local_actor.ap_id.clone()),
+        };
+        let accept = AcceptActivity {
+            id: activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: follow,
+        };
+
+        data.federation_repo
+            .update_follower_status(local_user_id, remote_actor_url, FollowerStatus::Accepted)
+            .await?;
+
+        let inbox = Url::parse(&remote_actor.inbox_url)?;
+        let sends = SendActivityTask::prepare(
+            &WithContext::new_default(accept),
+            &local_actor,
+            vec![inbox.clone()],
+            &data,
+        )
+        .await?;
+        let failures = send_with_retry(sends, &data).await;
+        if !failures.is_empty() {
+            tracing::warn!("failed to deliver Accept activity, but follower is marked accepted locally");
+        }
+
+        self.spawn_backfill(local_user_id, remote_actor.inbox_url.clone());
+
+        Ok(())
+    }
+
+    pub async fn reject_follower(
+        &self,
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+    ) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+        let local_actor = get_local_actor(local_user_id, &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let remote_actor = data
+            .federation_repo
+            .get_remote_actor(remote_actor_url)
+            .await?
+            .ok_or_else(|| anyhow::anyhow!("remote actor not found"))?;
+
+        let follow_id = activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?;
+        let follow = FollowActivity {
+            id: follow_id,
+            kind: Default::default(),
+            actor: ObjectId::from(Url::parse(remote_actor_url)?),
+            object: ObjectId::from(local_actor.ap_id.clone()),
+        };
+        let reject = RejectActivity {
+            id: activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: follow,
+        };
+
+        let inbox = Url::parse(&remote_actor.inbox_url)?;
+        let sends = SendActivityTask::prepare(
+            &WithContext::new_default(reject),
+            &local_actor,
+            vec![inbox],
+            &data,
+        )
+        .await?;
+        let failures = send_with_retry(sends, &data).await;
+        if !failures.is_empty() {
+            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+        }
+
+        data.federation_repo
+            .remove_follower(local_user_id, remote_actor_url)
+            .await?;
+
+        Ok(())
+    }
+
+    pub async fn get_pending_followers(&self, local_user_id: uuid::Uuid) -> anyhow::Result<Vec<RemoteActor>> {
+        let data = self.federation_config.to_request_data();
+        data.federation_repo.get_pending_followers(local_user_id).await
+    }
+
+    pub async fn get_accepted_followers(&self, local_user_id: uuid::Uuid) -> anyhow::Result<Vec<RemoteActor>> {
+        let data = self.federation_config.to_request_data();
+        let followers = data.federation_repo.get_followers(local_user_id).await?;
+        Ok(followers
+            .into_iter()
+            .filter(|f| f.status == FollowerStatus::Accepted)
+            .map(|f| f.actor)
+            .collect())
+    }
+
+    pub async fn count_accepted_followers(&self, local_user_id: uuid::Uuid) -> anyhow::Result<usize> {
+        let data = self.federation_config.to_request_data();
+        let followers = data.federation_repo.get_followers(local_user_id).await?;
+        Ok(followers.into_iter().filter(|f| f.status == FollowerStatus::Accepted).count())
+    }
+
+    pub async fn get_following(&self, local_user_id: uuid::Uuid) -> anyhow::Result<Vec<RemoteActor>> {
+        let data = self.federation_config.to_request_data();
+        data.federation_repo.get_following(local_user_id).await
+    }
+
+    pub async fn count_following(&self, local_user_id: uuid::Uuid) -> anyhow::Result<usize> {
+        let data = self.federation_config.to_request_data();
+        data.federation_repo.count_following(local_user_id).await
+    }
+
+    pub async fn remove_follower(&self, local_user_id: uuid::Uuid, actor_url: &str) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+        data.federation_repo.remove_follower(local_user_id, actor_url).await
+    }
+
+    /// Broadcast a single object to all accepted followers as a Create activity.
+    /// Called by project-specific event handlers when new content is created.
+    pub async fn broadcast_to_followers(
+        &self,
+        local_user_id: uuid::Uuid,
+        ap_id: Url,
+        object: serde_json::Value,
+    ) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+        let local_actor = get_local_actor(local_user_id, &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let followers = data.federation_repo.get_followers(local_user_id).await?;
+        let accepted: Vec<_> = followers
+            .into_iter()
+            .filter(|f| f.status == FollowerStatus::Accepted)
+            .collect();
+
+        if accepted.is_empty() {
+            return Ok(());
+        }
+
+        let create = CreateActivity {
+            id: ap_id.clone(),
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object,
+        };
+        let create_with_ctx = WithContext::new_default(create);
+
+        let inboxes: Vec<Url> = accepted
+            .iter()
+            .filter_map(|f| Url::parse(&f.actor.inbox_url).ok())
+            .collect();
+
+        let sends = SendActivityTask::prepare(&create_with_ctx, &local_actor, inboxes, &data).await?;
+        let failures = send_with_retry(sends, &data).await;
+        if !failures.is_empty() {
+            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+        }
+
+        Ok(())
+    }
+
+    fn spawn_backfill(&self, owner_user_id: uuid::Uuid, follower_inbox_url: String) {
+        let config = self.federation_config.clone();
+        let base_url = self.base_url.clone();
+        tokio::spawn(async move {
+            if let Err(e) = ActivityPubService::run_backfill(config, base_url, owner_user_id, follower_inbox_url).await {
+                tracing::warn!(error = %e, "backfill: task failed");
+            }
+        });
+    }
+
+    async fn run_backfill(
+        config: ApFederationConfig,
+        base_url: String,
+        owner_user_id: uuid::Uuid,
+        follower_inbox_url: String,
+    ) -> anyhow::Result<()> {
+        const BATCH_SIZE: usize = 20;
+
+        let data = config.to_request_data();
+        let local_actor = get_local_actor(owner_user_id, &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+        let inbox = Url::parse(&follower_inbox_url)?;
+
+        let mut objects = data.object_handler.get_local_objects_for_user(owner_user_id).await?;
+        objects.reverse(); // oldest first → chronological feed
+
+        let total = objects.len();
+        let mut success_count = 0usize;
+        let mut failure_count = 0usize;
+
+        for chunk in objects.chunks(BATCH_SIZE) {
+            for (ap_id, object_json) in chunk {
+                // Use a stable Create activity ID derived from the object's ap_id
+                let create_id = Url::parse(&format!("{}/activities/create/{}", base_url,
+                    uuid::Uuid::new_v5(&uuid::Uuid::NAMESPACE_URL, ap_id.as_str().as_bytes())
+                ))?;
+
+                let create = CreateActivity {
+                    id: create_id,
+                    kind: Default::default(),
+                    actor: ObjectId::from(local_actor.ap_id.clone()),
+                    object: object_json.clone(),
+                };
+
+                let sends = SendActivityTask::prepare(
+                    &WithContext::new_default(create),
+                    &local_actor,
+                    vec![inbox.clone()],
+                    &data,
+                ).await?;
+                let failures = send_with_retry(sends, &data).await;
+                if failures.is_empty() {
+                    success_count += 1;
+                } else {
+                    failure_count += 1;
+                }
+            }
+            tokio::time::sleep(std::time::Duration::from_millis(100)).await;
+        }
+
+        tracing::info!(
+            user_id = %owner_user_id,
+            follower = %follower_inbox_url,
+            sent = success_count,
+            failed = failure_count,
+            total = total,
+            "backfill complete"
+        );
+        Ok(())
+    }
+}

crates/adapters/activitypub-base/src/urls.rs

@@ -0,0 +1,20 @@
+use url::Url;
+
+use crate::error::Error;
+
+pub fn extract_user_id_from_url(url: &Url) -> Option<uuid::Uuid> {
+    let path = url.path();
+    path.strip_prefix("/users/")
+        .and_then(|s| s.split('/').next())
+        .and_then(|s| uuid::Uuid::parse_str(s).ok())
+}
+
+pub fn activity_url(base_url: &str) -> Result<Url, Error> {
+    Url::parse(&format!("{}/activities/{}", base_url, uuid::Uuid::new_v4()))
+        .map_err(|e| Error::bad_request(anyhow::anyhow!(e)))
+}
+
+pub fn actor_url(base_url: &str, user_id: uuid::Uuid) -> Url {
+    Url::parse(&format!("{}/users/{}", base_url, user_id))
+        .expect("base_url is always a valid URL prefix")
+}

crates/adapters/activitypub-base/src/user.rs

@@ -0,0 +1,13 @@
+use async_trait::async_trait;
+
+#[derive(Debug, Clone)]
+pub struct ApUser {
+    pub id: uuid::Uuid,
+    pub username: String,
+}
+
+#[async_trait]
+pub trait ApUserRepository: Send + Sync {
+    async fn find_by_id(&self, id: uuid::Uuid) -> anyhow::Result<Option<ApUser>>;
+    async fn find_by_username(&self, username: &str) -> anyhow::Result<Option<ApUser>>;
+}

crates/adapters/activitypub-base/src/webfinger.rs

@@ -0,0 +1,42 @@
+use activitypub_federation::{
+    config::Data,
+    fetch::webfinger::{build_webfinger_response, extract_webfinger_name, Webfinger},
+};
+use axum::{
+    extract::Query,
+    http::header,
+    response::{IntoResponse, Response},
+};
+use serde::Deserialize;
+
+use crate::data::FederationData;
+use crate::error::Error;
+
+#[derive(Deserialize)]
+pub struct WebfingerQuery {
+    resource: String,
+}
+
+pub async fn webfinger_handler(
+    Query(query): Query<WebfingerQuery>,
+    data: Data<FederationData>,
+) -> Result<Response, Error> {
+    let name = extract_webfinger_name(&query.resource, &data)?;
+
+    let user = data
+        .user_repo
+        .find_by_username(name)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found")))?;
+
+    let ap_id = crate::urls::actor_url(&data.base_url, user.id);
+
+    let wf: Webfinger = build_webfinger_response(query.resource, ap_id);
+    let body = serde_json::to_string(&wf)
+        .map_err(|e| Error::from(anyhow::anyhow!(e)))?;
+    Ok((
+        [(header::CONTENT_TYPE, "application/jrd+json")],
+        body,
+    ).into_response())
+}

crates/adapters/activitypub/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "activitypub"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+activitypub-base = { workspace = true }
+domain = { workspace = true }
+tokio = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+uuid = { workspace = true }
+chrono = { workspace = true }
+anyhow = { workspace = true }
+tracing = { workspace = true }
+async-trait = { workspace = true }
+event-publisher = { workspace = true }
+
+activitypub_federation = "0.7.0-beta.11"
+url = { version = "2", features = ["serde"] }

crates/adapters/activitypub/src/activities.rs

@@ -0,0 +1,361 @@
+use activitypub_federation::{
+    config::Data,
+    fetch::object_id::ObjectId,
+    kinds::activity::{AcceptType, CreateType, DeleteType, FollowType, RejectType, UndoType, UpdateType},
+    traits::{Activity, Object},
+};
+use serde::{Deserialize, Serialize};
+use url::Url;
+
+use crate::actors::DbActor;
+use crate::data::FederationData;
+use crate::error::Error;
+use crate::objects::{DbReview, ReviewObject};
+use crate::repository::{FollowerStatus, FollowingStatus};
+
+// --- Follow ---
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct FollowActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: FollowType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: ObjectId<DbActor>,
+}
+
+#[async_trait::async_trait]
+impl Activity for FollowActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let target_url = self.object.inner();
+        // Url::domain() strips the port, so build host:port explicitly
+        let target_domain = match (target_url.host_str(), target_url.port()) {
+            (Some(host), Some(port)) => format!("{}:{}", host, port),
+            (Some(host), None) => host.to_string(),
+            _ => return Err(Error::bad_request(anyhow::anyhow!("invalid follow target URL"))),
+        };
+        if target_domain != data.domain {
+            return Err(Error::bad_request(anyhow::anyhow!("follow target is not a local actor")));
+        }
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let _follower = self.actor.dereference(data).await?;
+        let local_actor = self.object.dereference(data).await?;
+
+        data.federation_repo
+            .add_follower(
+                local_actor.user_id.clone(),
+                self.actor.inner().as_str(),
+                FollowerStatus::Pending,
+                self.id.as_str(),
+            )
+            .await?;
+
+        tracing::info!(
+            follower = %self.actor.inner(),
+            local_user = %local_actor.user_id.value(),
+            "follow request pending approval"
+        );
+        Ok(())
+    }
+}
+
+// --- Accept ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct AcceptActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: AcceptType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: FollowActivity,
+}
+
+#[async_trait::async_trait]
+impl Activity for AcceptActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let local_user_id = crate::urls::extract_user_id_from_url(self.object.actor.inner())
+            .ok_or_else(|| Error::bad_request(anyhow::anyhow!("invalid actor URL in Follow")))?;
+        let remote_actor_url = self.actor.inner().as_str();
+        data.federation_repo
+            .update_following_status(local_user_id, remote_actor_url, FollowingStatus::Accepted)
+            .await?;
+        tracing::info!(
+            remote_actor = %self.actor.inner(),
+            "follow accepted by remote"
+        );
+        Ok(())
+    }
+}
+
+// --- Reject ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct RejectActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: RejectType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: FollowActivity,
+}
+
+#[async_trait::async_trait]
+impl Activity for RejectActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        // The actor rejected our follow. Extract the local user from the original Follow's actor.
+        let local_user_url = self.object.actor.inner();
+        if let Some(user_id) = crate::urls::extract_user_id_from_url(local_user_url) {
+            data.federation_repo
+                .remove_following(user_id, self.actor.inner().as_str())
+                .await?;
+        }
+        tracing::info!(actor = %self.actor.inner(), "follow rejected");
+        Ok(())
+    }
+}
+
+// --- Undo ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct UndoActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: UndoType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: FollowActivity,
+}
+
+#[async_trait::async_trait]
+impl Activity for UndoActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        // Remote actor is unfollowing a local user
+        let local_user_url = self.object.object.inner();
+        if let Some(user_id) = crate::urls::extract_user_id_from_url(local_user_url) {
+            data.federation_repo
+                .remove_follower(user_id, self.actor.inner().as_str())
+                .await?;
+        }
+        tracing::info!(actor = %self.actor.inner(), "unfollowed");
+        Ok(())
+    }
+}
+
+// --- Create ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CreateActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: CreateType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: ReviewObject,
+}
+
+#[async_trait::async_trait]
+impl Activity for CreateActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        if self.object.attributed_to.inner() != self.actor.inner() {
+            return Err(Error::bad_request(anyhow::anyhow!(
+                "activity actor does not match object attributed_to"
+            )));
+        }
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        DbReview::from_json(self.object, data).await?;
+        tracing::info!(actor = %self.actor.inner(), "received review");
+        Ok(())
+    }
+}
+
+// --- Delete ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct DeleteActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: DeleteType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: Url,
+}
+
+#[async_trait::async_trait]
+impl Activity for DeleteActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        data.federation_repo
+            .delete_remote_review_by_ap_id(
+                self.object.as_str(),
+                self.actor.inner().as_str(),
+            )
+            .await?;
+        tracing::info!(object = %self.object, "remote review deleted");
+        Ok(())
+    }
+}
+
+// --- Update ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct UpdateActivity {
+    pub(crate) id: Url,
+    #[serde(rename = "type", default)]
+    pub(crate) kind: UpdateType,
+    pub(crate) actor: ObjectId<DbActor>,
+    pub(crate) object: serde_json::Value,
+}
+
+#[async_trait::async_trait]
+impl Activity for UpdateActivity {
+    type DataType = FederationData;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let object: ReviewObject = match serde_json::from_value(self.object) {
+            Ok(o) => o,
+            Err(_) => {
+                tracing::debug!(actor = %self.actor.inner(), "ignoring non-review Update activity");
+                return Ok(());
+            }
+        };
+        if object.attributed_to.inner() != self.actor.inner() {
+            return Err(Error::bad_request(anyhow::anyhow!(
+                "update actor does not match object attributed_to"
+            )));
+        }
+        let ap_id = object.id.inner().as_str();
+        let rating = object.rating.min(5);
+        let comment = object.comment.as_deref();
+        let watched_at = object.watched_at.naive_utc();
+        data.federation_repo
+            .update_remote_review(ap_id, self.actor.inner().as_str(), rating, comment, watched_at)
+            .await?;
+        tracing::info!(actor = %self.actor.inner(), ap_id = %ap_id, "remote review updated");
+        Ok(())
+    }
+}
+
+// --- Inbox dispatch enum ---
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(tag = "type")]
+#[enum_delegate::implement(Activity)]
+pub enum InboxActivities {
+    #[serde(rename = "Follow")]
+    Follow(FollowActivity),
+    #[serde(rename = "Accept")]
+    Accept(AcceptActivity),
+    #[serde(rename = "Reject")]
+    Reject(RejectActivity),
+    #[serde(rename = "Undo")]
+    Undo(UndoActivity),
+    #[serde(rename = "Create")]
+    Create(CreateActivity),
+    #[serde(rename = "Delete")]
+    Delete(DeleteActivity),
+    #[serde(rename = "Update")]
+    Update(UpdateActivity),
+}

crates/adapters/activitypub/src/actor_handler.rs

@@ -0,0 +1,24 @@
+use activitypub_federation::{
+    axum::json::FederationJson, config::Data, protocol::context::WithContext, traits::Object,
+};
+use axum::extract::Path;
+
+use domain::value_objects::UserId;
+
+use crate::actors::{get_local_actor, Person};
+use crate::data::FederationData;
+use crate::error::Error;
+
+pub async fn actor_handler(
+    Path(user_id_str): Path<String>,
+    data: Data<FederationData>,
+) -> Result<FederationJson<WithContext<Person>>, Error> {
+    let uuid = uuid::Uuid::parse_str(&user_id_str)
+        .map_err(|_| Error::bad_request(anyhow::anyhow!("invalid user id")))?;
+    let user_id = UserId::from_uuid(uuid);
+
+    let db_actor = get_local_actor(user_id, &data).await?;
+    let person = db_actor.into_json(&data).await?;
+
+    Ok(FederationJson(WithContext::new_default(person)))
+}

crates/adapters/activitypub/src/actors.rs

@@ -0,0 +1,235 @@
+use activitypub_federation::{
+    config::Data,
+    fetch::object_id::ObjectId,
+    http_signatures::generate_actor_keypair,
+    kinds::actor::PersonType,
+    protocol::{public_key::PublicKey, verification::verify_domains_match},
+    traits::{Actor, Object},
+};
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+use url::Url;
+
+use domain::value_objects::UserId;
+
+use crate::data::FederationData;
+use crate::error::Error;
+use crate::repository::RemoteActor;
+
+#[derive(Debug, Clone)]
+pub struct DbActor {
+    pub user_id: UserId,
+    pub username: String,
+    pub public_key_pem: String,
+    pub private_key_pem: Option<String>,
+    pub inbox_url: Url,
+    pub outbox_url: Url,
+    pub followers_url: Url,
+    pub following_url: Url,
+    pub ap_id: Url,
+    pub last_refreshed_at: DateTime<Utc>,
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Person {
+    #[serde(rename = "type")]
+    kind: PersonType,
+    id: ObjectId<DbActor>,
+    preferred_username: String,
+    inbox: Url,
+    outbox: Url,
+    followers: Url,
+    following: Url,
+    public_key: PublicKey,
+    name: Option<String>,
+}
+
+pub async fn get_local_actor(
+    user_id: UserId,
+    data: &Data<FederationData>,
+) -> Result<DbActor, Error> {
+    let user = data
+        .user_repo
+        .find_by_id(&user_id)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found: {}", user_id.value())))?;
+
+    let (public_key, private_key) = match data
+        .federation_repo
+        .get_local_actor_keypair(user_id.clone())
+        .await?
+    {
+        Some(kp) => kp,
+        None => {
+            let kp = generate_actor_keypair()?;
+            data.federation_repo
+                .save_local_actor_keypair(
+                    user_id.clone(),
+                    kp.public_key.clone(),
+                    kp.private_key.clone(),
+                )
+                .await?;
+            (kp.public_key, kp.private_key)
+        }
+    };
+
+    let ap_id = crate::urls::actor_url(&data.base_url, user.id());
+    let inbox_url = Url::parse(&format!("{}/inbox", &ap_id)).expect("valid inbox url");
+    let outbox_url = Url::parse(&format!("{}/outbox", &ap_id)).expect("valid outbox url");
+    let followers_url = Url::parse(&format!("{}/followers", &ap_id)).expect("valid followers url");
+    let following_url = Url::parse(&format!("{}/following", &ap_id)).expect("valid following url");
+
+    Ok(DbActor {
+        user_id: user.id().clone(),
+        username: user.username().value().to_string(),
+        public_key_pem: public_key,
+        private_key_pem: Some(private_key),
+        inbox_url,
+        outbox_url,
+        followers_url,
+        following_url,
+        ap_id,
+        last_refreshed_at: Utc::now(),
+    })
+}
+
+#[async_trait::async_trait]
+impl Object for DbActor {
+    type DataType = FederationData;
+    type Kind = Person;
+    type Error = Error;
+
+    fn id(&self) -> &Url {
+        &self.ap_id
+    }
+
+    fn last_refreshed_at(&self) -> Option<DateTime<Utc>> {
+        Some(self.last_refreshed_at)
+    }
+
+    async fn read_from_id(
+        object_id: Url,
+        data: &Data<Self::DataType>,
+    ) -> Result<Option<Self>, Self::Error> {
+        // Extract user_id from URL path: /users/{uuid}
+        let user_id = match crate::urls::extract_user_id_from_url(&object_id) {
+            Some(id) => id,
+            None => return Ok(None),
+        };
+        let user = match data.user_repo.find_by_id(&user_id).await {
+            Ok(Some(u)) => u,
+            _ => return Ok(None),
+        };
+
+        let keypair = data
+            .federation_repo
+            .get_local_actor_keypair(user_id.clone())
+            .await?;
+
+        let (public_key, private_key) = match keypair {
+            Some(kp) => (kp.0, Some(kp.1)),
+            None => return Ok(None),
+        };
+
+        let ap_id = crate::urls::actor_url(&data.base_url, user.id());
+        let inbox_url = Url::parse(&format!("{}/inbox", &ap_id)).expect("valid url");
+        let outbox_url = Url::parse(&format!("{}/outbox", &ap_id)).expect("valid url");
+        let followers_url = Url::parse(&format!("{}/followers", &ap_id)).expect("valid url");
+        let following_url = Url::parse(&format!("{}/following", &ap_id)).expect("valid url");
+
+        Ok(Some(DbActor {
+            user_id: user.id().clone(),
+            username: user.username().value().to_string(),
+            public_key_pem: public_key,
+            private_key_pem: private_key,
+            inbox_url,
+            outbox_url,
+            followers_url,
+            following_url,
+            ap_id,
+            last_refreshed_at: Utc::now(),
+        }))
+    }
+
+    async fn into_json(self, _data: &Data<Self::DataType>) -> Result<Self::Kind, Self::Error> {
+        let public_key = PublicKey {
+            id: format!("{}#main-key", &self.ap_id),
+            owner: self.ap_id.clone(),
+            public_key_pem: self.public_key_pem.clone(),
+        };
+
+        Ok(Person {
+            kind: Default::default(),
+            id: self.ap_id.clone().into(),
+            preferred_username: self.username.clone(),
+            inbox: self.inbox_url.clone(),
+            outbox: self.outbox_url.clone(),
+            followers: self.followers_url.clone(),
+            following: self.following_url.clone(),
+            public_key,
+            name: Some(self.username.clone()),
+        })
+    }
+
+    async fn verify(
+        json: &Self::Kind,
+        expected_domain: &Url,
+        _data: &Data<Self::DataType>,
+    ) -> Result<(), Self::Error> {
+        verify_domains_match(json.id.inner(), expected_domain)?;
+        Ok(())
+    }
+
+    async fn from_json(
+        json: Self::Kind,
+        data: &Data<Self::DataType>,
+    ) -> Result<Self, Self::Error> {
+        let actor = RemoteActor {
+            url: json.id.inner().to_string(),
+            handle: json.preferred_username.clone(),
+            inbox_url: json.inbox.to_string(),
+            shared_inbox_url: None,
+            display_name: json.name.clone(),
+        };
+        data.federation_repo.upsert_remote_actor(actor).await?;
+
+        // Deterministic UUID from actor URL so the same remote actor always maps to the same UserId
+        let url_str = json.id.inner().to_string();
+        let stable_id = uuid::Uuid::new_v5(&uuid::Uuid::NAMESPACE_URL, url_str.as_bytes());
+        let user_id = UserId::from_uuid(stable_id);
+        let ap_id = json.id.inner().clone();
+        let inbox_url = json.inbox.clone();
+        let outbox_url = json.outbox.clone();
+        let followers_url = json.followers.clone();
+        let following_url = json.following.clone();
+
+        Ok(DbActor {
+            user_id,
+            username: json.preferred_username.clone(),
+            public_key_pem: json.public_key.public_key_pem,
+            private_key_pem: None,
+            inbox_url,
+            outbox_url,
+            followers_url,
+            following_url,
+            ap_id,
+            last_refreshed_at: Utc::now(),
+        })
+    }
+}
+
+impl Actor for DbActor {
+    fn public_key_pem(&self) -> &str {
+        &self.public_key_pem
+    }
+
+    fn private_key_pem(&self) -> Option<String> {
+        self.private_key_pem.clone()
+    }
+
+    fn inbox(&self) -> Url {
+        self.inbox_url.clone()
+    }
+}

crates/adapters/activitypub/src/data.rs

@@ -0,0 +1,38 @@
+use std::sync::Arc;
+
+use domain::ports::{MovieRepository, UserRepository};
+
+use crate::repository::FederationRepository;
+
+#[derive(Clone)]
+pub struct FederationData {
+    pub(crate) federation_repo: Arc<dyn FederationRepository>,
+    pub(crate) user_repo: Arc<dyn UserRepository>,
+    pub(crate) movie_repo: Arc<dyn MovieRepository>,
+    pub(crate) base_url: String,
+    pub(crate) domain: String,
+}
+
+impl FederationData {
+    pub fn new(
+        federation_repo: Arc<dyn FederationRepository>,
+        user_repo: Arc<dyn UserRepository>,
+        movie_repo: Arc<dyn MovieRepository>,
+        base_url: String,
+    ) -> Self {
+        let domain = base_url
+            .trim_start_matches("https://")
+            .trim_start_matches("http://")
+            .split('/')
+            .next()
+            .unwrap_or("")
+            .to_string();
+        Self {
+            federation_repo,
+            user_repo,
+            movie_repo,
+            base_url,
+            domain,
+        }
+    }
+}

crates/adapters/activitypub/src/error.rs

@@ -0,0 +1,49 @@
+use std::fmt::{Display, Formatter};
+
+use axum::http::StatusCode;
+
+#[derive(Debug)]
+pub struct Error(pub(crate) anyhow::Error, pub(crate) StatusCode);
+
+impl Error {
+    pub fn not_found(e: impl Into<anyhow::Error>) -> Self {
+        Self(e.into(), StatusCode::NOT_FOUND)
+    }
+
+    pub fn bad_request(e: impl Into<anyhow::Error>) -> Self {
+        Self(e.into(), StatusCode::BAD_REQUEST)
+    }
+
+}
+
+impl Display for Error {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        std::fmt::Display::fmt(&self.0, f)
+    }
+}
+
+impl<T> From<T> for Error
+where
+    T: Into<anyhow::Error>,
+{
+    fn from(t: T) -> Self {
+        Error(t.into(), StatusCode::INTERNAL_SERVER_ERROR)
+    }
+}
+
+impl axum::response::IntoResponse for Error {
+    fn into_response(self) -> axum::response::Response {
+        let status = self.1;
+        if status.is_server_error() {
+            tracing::error!(error = %self.0, status = status.as_u16(), "federation error");
+        } else {
+            tracing::debug!(error = %self.0, status = status.as_u16(), "federation response");
+        }
+        let body = if status.is_server_error() {
+            "internal server error".to_string()
+        } else {
+            self.0.to_string()
+        };
+        (status, body).into_response()
+    }
+}

crates/adapters/activitypub/src/event_handler.rs

@@ -0,0 +1,77 @@
+use async_trait::async_trait;
+use domain::{
+    errors::DomainError,
+    events::DomainEvent,
+    ports::MovieRepository,
+    value_objects::{ReviewId, UserId},
+};
+use event_publisher::EventHandler;
+use std::sync::Arc;
+
+use activitypub_base::ActivityPubService;
+
+use crate::objects::review_to_ap_object;
+use crate::urls::{actor_url, review_url};
+
+pub struct ActivityPubEventHandler {
+    ap_service: Arc<ActivityPubService>,
+    movie_repo: Arc<dyn MovieRepository>,
+    base_url: String,
+}
+
+impl ActivityPubEventHandler {
+    pub fn new(
+        ap_service: Arc<ActivityPubService>,
+        movie_repo: Arc<dyn MovieRepository>,
+        base_url: String,
+    ) -> Self {
+        Self { ap_service, movie_repo, base_url }
+    }
+}
+
+#[async_trait]
+impl EventHandler for ActivityPubEventHandler {
+    async fn handle(&self, event: &DomainEvent) -> Result<(), DomainError> {
+        match event {
+            DomainEvent::ReviewLogged { review_id, user_id, .. } => self
+                .on_review_logged(user_id, review_id)
+                .await
+                .map_err(|e| DomainError::InfrastructureError(e.to_string())),
+            _ => Ok(()),
+        }
+    }
+}
+
+impl ActivityPubEventHandler {
+    async fn on_review_logged(
+        &self,
+        user_id: &UserId,
+        review_id: &ReviewId,
+    ) -> anyhow::Result<()> {
+        let review = match self.movie_repo.get_review_by_id(review_id).await? {
+            Some(r) => r,
+            None => return Ok(()),
+        };
+
+        let ap_id = review_url(&self.base_url, review_id);
+        let actor = actor_url(&self.base_url, user_id.value());
+
+        let movie = self.movie_repo.get_movie_by_id(review.movie_id()).await.ok().flatten();
+        let movie_title = movie.as_ref()
+            .map(|m| m.title().value().to_string())
+            .unwrap_or_else(|| "Unknown".to_string());
+        let release_year = movie.as_ref().map(|m| m.release_year().value()).unwrap_or(0);
+        let poster_url = movie.as_ref()
+            .and_then(|m| m.poster_path())
+            .map(|p| format!("{}/posters/{}", self.base_url, p.value()));
+
+        let obj = review_to_ap_object(&review, ap_id.clone(), actor, movie_title, release_year, poster_url);
+        let json = serde_json::to_value(obj)?;
+
+        self.ap_service
+            .broadcast_to_followers(user_id.value(), ap_id, json)
+            .await?;
+
+        Ok(())
+    }
+}

crates/adapters/activitypub/src/federation.rs

@@ -0,0 +1,52 @@
+use activitypub_federation::config::{Data, FederationConfig, FederationMiddleware, UrlVerifier};
+use activitypub_federation::error::Error as FedError;
+use url::Url;
+
+use crate::data::FederationData;
+
+// In debug mode, allow all URLs (including http://localhost:3000 where the
+// port colon would otherwise fail the default domain character check).
+#[derive(Clone)]
+struct PermissiveVerifier;
+
+#[async_trait::async_trait]
+impl UrlVerifier for PermissiveVerifier {
+    async fn verify(&self, _url: &Url) -> Result<(), FedError> {
+        Ok(())
+    }
+}
+
+#[derive(Clone)]
+pub struct ApFederationConfig(pub FederationConfig<FederationData>);
+
+impl ApFederationConfig {
+    pub async fn new(data: FederationData, debug: bool) -> anyhow::Result<Self> {
+        let config = if debug {
+            FederationConfig::builder()
+                .domain(&data.domain)
+                .app_data(data)
+                .debug(true)
+                .http_signature_compat(true)
+                .url_verifier(Box::new(PermissiveVerifier))
+                .build()
+                .await?
+        } else {
+            FederationConfig::builder()
+                .domain(&data.domain)
+                .app_data(data)
+                .debug(false)
+                .http_signature_compat(true)
+                .build()
+                .await?
+        };
+        Ok(Self(config))
+    }
+
+    pub fn to_request_data(&self) -> Data<FederationData> {
+        self.0.to_request_data()
+    }
+
+    pub fn middleware(&self) -> FederationMiddleware<FederationData> {
+        FederationMiddleware::new(self.0.clone())
+    }
+}

crates/adapters/activitypub/src/followers_handler.rs

@@ -0,0 +1,80 @@
+use activitypub_federation::{axum::json::FederationJson, config::Data};
+use axum::extract::Path;
+use serde_json::json;
+
+use domain::value_objects::UserId;
+
+use crate::data::FederationData;
+use crate::error::Error;
+use crate::repository::FollowerStatus;
+
+fn ordered_collection(id: String, total: usize, items: Vec<String>) -> serde_json::Value {
+    json!({
+        "@context": "https://www.w3.org/ns/activitystreams",
+        "type": "OrderedCollection",
+        "id": id,
+        "totalItems": total,
+        "orderedItems": items,
+    })
+}
+
+pub async fn followers_handler(
+    Path(user_id_str): Path<String>,
+    data: Data<FederationData>,
+) -> Result<FederationJson<serde_json::Value>, Error> {
+    let user_id = UserId::from_uuid(
+        uuid::Uuid::parse_str(&user_id_str)
+            .map_err(|_| Error::bad_request(anyhow::anyhow!("invalid user id")))?,
+    );
+
+    data.user_repo
+        .find_by_id(&user_id)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found")))?;
+
+    let followers = data
+        .federation_repo
+        .get_followers(user_id)
+        .await
+        .map_err(Error::from)?;
+
+    let items: Vec<String> = followers
+        .into_iter()
+        .filter(|f| f.status == FollowerStatus::Accepted)
+        .map(|f| f.actor.url)
+        .collect();
+
+    let id = format!("{}/users/{}/followers", data.base_url, user_id_str);
+    Ok(FederationJson(ordered_collection(id, items.len(), items)))
+}
+
+pub async fn following_handler(
+    Path(user_id_str): Path<String>,
+    data: Data<FederationData>,
+) -> Result<FederationJson<serde_json::Value>, Error> {
+    let user_id = UserId::from_uuid(
+        uuid::Uuid::parse_str(&user_id_str)
+            .map_err(|_| Error::bad_request(anyhow::anyhow!("invalid user id")))?,
+    );
+
+    data.user_repo
+        .find_by_id(&user_id)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found")))?;
+
+    let following = data
+        .federation_repo
+        .get_following(user_id)
+        .await
+        .map_err(Error::from)?;
+
+    let items: Vec<String> = following
+        .into_iter()
+        .map(|a| a.url)
+        .collect();
+
+    let id = format!("{}/users/{}/following", data.base_url, user_id_str);
+    Ok(FederationJson(ordered_collection(id, items.len(), items)))
+}

crates/adapters/activitypub/src/inbox.rs

@@ -0,0 +1,20 @@
+use activitypub_federation::{
+    axum::inbox::{receive_activity, ActivityData},
+    config::Data,
+    protocol::context::WithContext,
+};
+
+use crate::activities::InboxActivities;
+use crate::actors::DbActor;
+use crate::data::FederationData;
+use crate::error::Error;
+
+pub async fn inbox_handler(
+    data: Data<FederationData>,
+    activity_data: ActivityData,
+) -> Result<(), Error> {
+    receive_activity::<WithContext<InboxActivities>, DbActor, FederationData>(
+        activity_data, &data,
+    )
+    .await
+}

crates/adapters/activitypub/src/lib.rs

@@ -0,0 +1,17 @@
+pub mod event_handler;
+pub mod objects;
+pub mod remote_review_repository;
+pub mod review_handler;
+pub mod user_adapter;
+pub(crate) mod urls;
+
+// Re-export the generic base types that callers need
+pub use activitypub_base::{
+    ActivityPubService, ApFederationConfig, ApObjectHandler, ApUser, ApUserRepository,
+    FederationData, FederationRepository, Follower, FollowerStatus, FollowingStatus, RemoteActor,
+};
+
+pub use event_handler::ActivityPubEventHandler;
+pub use remote_review_repository::RemoteReviewRepository;
+pub use review_handler::ReviewObjectHandler;
+pub use user_adapter::DomainUserRepoAdapter;

crates/adapters/activitypub/src/objects.rs

@@ -0,0 +1,59 @@
+use activitypub_federation::kinds::object::NoteType;
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+use url::Url;
+
+use domain::models::Review;
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ReviewObject {
+    #[serde(rename = "type")]
+    pub(crate) kind: NoteType,
+    pub(crate) id: Url,
+    pub(crate) attributed_to: Url,
+    pub(crate) content: String,
+    pub(crate) published: DateTime<Utc>,
+    pub(crate) movie_title: String,
+    #[serde(default)]
+    pub(crate) release_year: u16,
+    #[serde(default)]
+    pub(crate) poster_url: Option<String>,
+    pub(crate) rating: u8,
+    pub(crate) comment: Option<String>,
+    pub(crate) watched_at: DateTime<Utc>,
+}
+
+/// Serialize a local Review into a ReviewObject for AP delivery.
+/// Takes movie metadata explicitly since the handler fetches it separately.
+pub fn review_to_ap_object(
+    review: &Review,
+    ap_id: Url,
+    actor_url: Url,
+    movie_title: String,
+    release_year: u16,
+    poster_url: Option<String>,
+) -> ReviewObject {
+    let stars: String = "\u{2B50}".repeat(review.rating().value() as usize);
+    let comment_text = review.comment().map(|c| c.value().to_string());
+    let year_str = if release_year > 0 { format!(" ({})", release_year) } else { String::new() };
+    let watched_str = format!("Watched: {}", review.watched_at().format("%b %-d, %Y"));
+    let content = match &comment_text {
+        Some(c) => format!("{} {}{}\n{}\n{}", stars, movie_title, year_str, c, watched_str),
+        None => format!("{} {}{}\n{}", stars, movie_title, year_str, watched_str),
+    };
+
+    ReviewObject {
+        kind: NoteType::default(),
+        id: ap_id,
+        attributed_to: actor_url,
+        content,
+        published: DateTime::from_naive_utc_and_offset(*review.created_at(), Utc),
+        movie_title,
+        release_year,
+        poster_url,
+        rating: review.rating().value(),
+        comment: comment_text,
+        watched_at: DateTime::from_naive_utc_and_offset(*review.watched_at(), Utc),
+    }
+}

crates/adapters/activitypub/src/outbox.rs

@@ -0,0 +1,56 @@
+use activitypub_federation::{axum::json::FederationJson, config::Data};
+use axum::extract::Path;
+use serde::{Deserialize, Serialize};
+
+use domain::{models::ReviewSource, value_objects::UserId};
+
+use crate::data::FederationData;
+use crate::error::Error;
+
+#[derive(Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct OrderedCollection {
+    #[serde(rename = "@context")]
+    context: String,
+    #[serde(rename = "type")]
+    kind: String,
+    id: String,
+    total_items: u64,
+    ordered_items: Vec<serde_json::Value>,
+}
+
+pub async fn outbox_handler(
+    Path(user_id_str): Path<String>,
+    data: Data<FederationData>,
+) -> Result<FederationJson<OrderedCollection>, Error> {
+    let uuid = uuid::Uuid::parse_str(&user_id_str)
+        .map_err(|_| Error::bad_request(anyhow::anyhow!("invalid user id")))?;
+    let user_id = UserId::from_uuid(uuid);
+
+    data.user_repo
+        .find_by_id(&user_id)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found")))?;
+
+    let history = data
+        .movie_repo
+        .get_user_history(&user_id)
+        .await
+        .map_err(Error::from)?;
+
+    let local_count = history
+        .iter()
+        .filter(|e| matches!(e.review().source(), ReviewSource::Local))
+        .count();
+
+    let outbox_url = format!("{}/users/{}/outbox", data.base_url, user_id_str);
+
+    Ok(FederationJson(OrderedCollection {
+        context: "https://www.w3.org/ns/activitystreams".to_string(),
+        kind: "OrderedCollection".to_string(),
+        id: outbox_url,
+        total_items: local_count as u64,
+        ordered_items: vec![],
+    }))
+}

crates/adapters/activitypub/src/remote_review_repository.rs

@@ -0,0 +1,29 @@
+use anyhow::Result;
+use async_trait::async_trait;
+use chrono::NaiveDateTime;
+use domain::models::Review;
+
+#[async_trait]
+pub trait RemoteReviewRepository: Send + Sync {
+    async fn save_remote_review(
+        &self,
+        review: &Review,
+        ap_id: &str,
+        movie_title: &str,
+        release_year: u16,
+        poster_url: Option<&str>,
+    ) -> Result<()>;
+
+    async fn delete_remote_review(&self, ap_id: &str, actor_url: &str) -> Result<()>;
+
+    async fn update_remote_review(
+        &self,
+        ap_id: &str,
+        actor_url: &str,
+        rating: u8,
+        comment: Option<&str>,
+        watched_at: NaiveDateTime,
+    ) -> Result<()>;
+
+    async fn delete_by_actor(&self, actor_url: &str) -> Result<()>;
+}

crates/adapters/activitypub/src/repository.rs

@@ -0,0 +1,76 @@
+use anyhow::Result;
+use async_trait::async_trait;
+use chrono::NaiveDateTime;
+use domain::models::Review;
+use domain::value_objects::UserId;
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum FollowerStatus {
+    Pending,
+    Accepted,
+    Rejected,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum FollowingStatus {
+    Pending,
+    Accepted,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct RemoteActor {
+    pub url: String,
+    pub handle: String,
+    pub inbox_url: String,
+    pub shared_inbox_url: Option<String>,
+    pub display_name: Option<String>,
+}
+
+#[derive(Debug, Clone)]
+pub struct Follower {
+    pub actor: RemoteActor,
+    pub status: FollowerStatus,
+}
+
+#[async_trait]
+pub trait FederationRepository: Send + Sync {
+    async fn add_follower(&self, local_user_id: UserId, remote_actor_url: &str, status: FollowerStatus, follow_activity_id: &str) -> Result<()>;
+    async fn get_follower_follow_activity_id(&self, local_user_id: UserId, remote_actor_url: &str) -> Result<Option<String>>;
+    async fn remove_follower(&self, local_user_id: UserId, remote_actor_url: &str) -> Result<()>;
+    async fn get_followers(&self, local_user_id: UserId) -> Result<Vec<Follower>>;
+    async fn update_follower_status(&self, local_user_id: UserId, remote_actor_url: &str, status: FollowerStatus) -> Result<()>;
+    async fn add_following(&self, local_user_id: UserId, actor: RemoteActor, follow_activity_id: &str) -> Result<()>;
+    async fn get_follow_activity_id(&self, local_user_id: UserId, remote_actor_url: &str) -> Result<Option<String>>;
+    async fn remove_following(&self, local_user_id: UserId, actor_url: &str) -> Result<()>;
+    async fn get_following(&self, local_user_id: UserId) -> Result<Vec<RemoteActor>>;
+    async fn count_following(&self, local_user_id: UserId) -> Result<usize>;
+    async fn upsert_remote_actor(&self, actor: RemoteActor) -> Result<()>;
+    async fn get_remote_actor(&self, actor_url: &str) -> Result<Option<RemoteActor>>;
+    async fn save_remote_review(
+        &self,
+        review: &Review,
+        ap_id: &str,
+        movie_title: &str,
+        release_year: u16,
+        poster_url: Option<&str>,
+    ) -> Result<()>;
+    async fn delete_remote_review_by_ap_id(&self, ap_id: &str, actor_url: &str) -> Result<()>;
+    async fn update_remote_review(
+        &self,
+        ap_id: &str,
+        actor_url: &str,
+        rating: u8,
+        comment: Option<&str>,
+        watched_at: NaiveDateTime,
+    ) -> Result<()>;
+    async fn get_local_actor_keypair(&self, user_id: UserId) -> Result<Option<(String, String)>>;
+    async fn save_local_actor_keypair(&self, user_id: UserId, public_key: String, private_key: String) -> Result<()>;
+    async fn delete_remote_reviews_by_actor(&self, actor_url: &str) -> Result<()>;
+    async fn get_pending_followers(&self, local_user_id: UserId) -> Result<Vec<RemoteActor>>;
+    async fn update_following_status(
+        &self,
+        local_user_id: UserId,
+        remote_actor_url: &str,
+        status: FollowingStatus,
+    ) -> Result<()>;
+}

crates/adapters/activitypub/src/review_handler.rs

@@ -0,0 +1,138 @@
+use std::sync::Arc;
+
+use activitypub_base::ApObjectHandler;
+use async_trait::async_trait;
+use domain::{
+    models::{Review, ReviewSource},
+    ports::MovieRepository,
+    value_objects::{Comment, MovieId, Rating, ReviewId, UserId},
+};
+use url::Url;
+
+use crate::objects::{review_to_ap_object, ReviewObject};
+use crate::remote_review_repository::RemoteReviewRepository;
+use crate::urls::{actor_url, review_url};
+
+pub struct ReviewObjectHandler {
+    pub movie_repo: Arc<dyn MovieRepository>,
+    pub review_store: Arc<dyn RemoteReviewRepository>,
+    pub base_url: String,
+}
+
+#[async_trait]
+impl ApObjectHandler for ReviewObjectHandler {
+    async fn get_local_objects_for_user(
+        &self,
+        user_id: uuid::Uuid,
+    ) -> anyhow::Result<Vec<(Url, serde_json::Value)>> {
+        let domain_user_id = UserId::from_uuid(user_id);
+        let history = self.movie_repo.get_user_history(&domain_user_id).await?;
+
+        let mut results = Vec::new();
+        for entry in history {
+            let review = entry.review();
+            if !matches!(review.source(), ReviewSource::Local) {
+                continue;
+            }
+
+            let ap_id = review_url(&self.base_url, review.id());
+            let actor_url = actor_url(&self.base_url, user_id);
+
+            let movie = self.movie_repo.get_movie_by_id(review.movie_id()).await.ok().flatten();
+            let movie_title = movie.as_ref()
+                .map(|m| m.title().value().to_string())
+                .unwrap_or_else(|| "Unknown".to_string());
+            let release_year = movie.as_ref()
+                .map(|m| m.release_year().value())
+                .unwrap_or(0);
+            let poster_url = movie.as_ref()
+                .and_then(|m| m.poster_path())
+                .map(|p| format!("{}/posters/{}", self.base_url, p.value()));
+
+            let obj = review_to_ap_object(review, ap_id.clone(), actor_url, movie_title, release_year, poster_url);
+            let json = serde_json::to_value(obj)?;
+            results.push((ap_id, json));
+        }
+        Ok(results)
+    }
+
+    async fn on_create(
+        &self,
+        _ap_id: &Url,
+        _actor_url: &Url,
+        object: serde_json::Value,
+    ) -> anyhow::Result<()> {
+        let obj: ReviewObject = match serde_json::from_value(object) {
+            Ok(o) => o,
+            Err(e) => {
+                tracing::debug!("ignoring unrecognized Create object: {}", e);
+                return Ok(());
+            }
+        };
+
+        let actor_url_str = obj.attributed_to.to_string();
+        let review_id = ReviewId::generate();
+        let movie_id = MovieId::from_uuid(uuid::Uuid::new_v5(&uuid::Uuid::NAMESPACE_URL, obj.movie_title.as_bytes()));
+        let user_id = UserId::from_uuid(uuid::Uuid::new_v5(&uuid::Uuid::NAMESPACE_URL, actor_url_str.as_bytes()));
+        let rating = Rating::new(obj.rating.min(5))?;
+        let comment = obj.comment.map(Comment::new).transpose()?;
+
+        let review = Review::from_persistence(
+            review_id,
+            movie_id,
+            user_id,
+            rating,
+            comment,
+            obj.watched_at.naive_utc(),
+            obj.published.naive_utc(),
+            ReviewSource::Remote { actor_url: actor_url_str },
+        );
+
+        self.review_store
+            .save_remote_review(&review, obj.id.as_str(), &obj.movie_title, obj.release_year, obj.poster_url.as_deref())
+            .await?;
+
+        Ok(())
+    }
+
+    async fn on_update(
+        &self,
+        ap_id: &Url,
+        actor_url: &Url,
+        object: serde_json::Value,
+    ) -> anyhow::Result<()> {
+        let obj: ReviewObject = match serde_json::from_value(object) {
+            Ok(o) => o,
+            Err(_) => {
+                tracing::debug!(actor = %actor_url, "ignoring non-review Update activity");
+                return Ok(());
+            }
+        };
+
+        if obj.attributed_to != *actor_url {
+            anyhow::bail!("update actor does not match object attributed_to");
+        }
+
+        self.review_store
+            .update_remote_review(
+                ap_id.as_str(),
+                actor_url.as_str(),
+                obj.rating.min(5),
+                obj.comment.as_deref(),
+                obj.watched_at.naive_utc(),
+            )
+            .await?;
+
+        Ok(())
+    }
+
+    async fn on_delete(&self, ap_id: &Url, actor_url: &Url) -> anyhow::Result<()> {
+        self.review_store
+            .delete_remote_review(ap_id.as_str(), actor_url.as_str())
+            .await
+    }
+
+    async fn on_actor_removed(&self, actor_url: &Url) -> anyhow::Result<()> {
+        self.review_store.delete_by_actor(actor_url.as_str()).await
+    }
+}

crates/adapters/activitypub/src/service.rs

@@ -0,0 +1,485 @@
+use std::sync::Arc;
+
+use activitypub_federation::{
+    activity_sending::SendActivityTask,
+    config::Data,
+    fetch::{object_id::ObjectId, webfinger::webfinger_resolve_actor},
+    protocol::context::WithContext,
+    traits::Actor,
+};
+use axum::{routing::get, routing::post, Router};
+use domain::{ports::UserRepository, value_objects::UserId};
+use url::Url;
+
+use crate::{
+    activities::{AcceptActivity, CreateActivity, FollowActivity, RejectActivity, UndoActivity},
+    actor_handler::actor_handler,
+    actors::{get_local_actor, DbActor},
+    data::FederationData,
+    event_handler::ActivityPubEventHandler,
+    federation::ApFederationConfig,
+    followers_handler::{followers_handler, following_handler},
+    inbox::inbox_handler,
+    outbox::outbox_handler,
+    repository::{FederationRepository, FollowerStatus, RemoteActor},
+    webfinger::webfinger_handler,
+};
+
+pub(crate) async fn send_with_retry(
+    sends: Vec<SendActivityTask>,
+    data: &Data<FederationData>,
+) -> Vec<anyhow::Error> {
+    let mut failures = vec![];
+    for send in sends {
+        let mut delay = std::time::Duration::from_secs(1);
+        for attempt in 1..=3u32 {
+            match send.clone().sign_and_send(data).await {
+                Ok(()) => {
+                    break;
+                }
+                Err(e) if attempt < 3 => {
+                    tracing::warn!(attempt, error = %e, "delivery failed, retrying");
+                    tokio::time::sleep(delay).await;
+                    delay *= 2;
+                }
+                Err(e) => {
+                    tracing::error!(attempt, error = %e, "delivery failed permanently");
+                    failures.push(anyhow::anyhow!(e));
+                }
+            }
+        }
+    }
+    failures
+}
+
+pub struct ActivityPubService {
+    federation_config: ApFederationConfig,
+    base_url: String,
+}
+
+impl ActivityPubService {
+    pub async fn new(
+        repo: Arc<dyn FederationRepository>,
+        user_repo: Arc<dyn UserRepository>,
+        movie_repo: Arc<dyn domain::ports::MovieRepository>,
+        base_url: String,
+        debug: bool,
+    ) -> anyhow::Result<Self> {
+        let data = FederationData::new(repo, user_repo, movie_repo, base_url.clone());
+        let federation_config = ApFederationConfig::new(data, debug).await?;
+        Ok(Self {
+            federation_config,
+            base_url,
+        })
+    }
+
+    pub fn federation_config(&self) -> &ApFederationConfig {
+        &self.federation_config
+    }
+
+    pub fn request_data(&self) -> Data<FederationData> {
+        self.federation_config.to_request_data()
+    }
+
+    // Returns the AP actor document JSON for a local user.
+    // Used for content negotiation in the HTML profile handler.
+    pub async fn actor_json(&self, user_id_str: &str) -> anyhow::Result<String> {
+        use activitypub_federation::traits::Object;
+        use crate::actors::get_local_actor;
+        let uuid = uuid::Uuid::parse_str(user_id_str)?;
+        let user_id = UserId::from_uuid(uuid);
+        let data = self.federation_config.to_request_data();
+        let actor = get_local_actor(user_id, &data).await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+        let person = actor.into_json(&data).await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+        let with_context = WithContext::new_default(person);
+        Ok(serde_json::to_string(&with_context)?)
+    }
+
+    pub fn router(&self) -> Router {
+        Router::new()
+            .route("/.well-known/webfinger", get(webfinger_handler))
+            .route("/users/{user_id}", get(actor_handler))
+            .route("/users/{user_id}/inbox", post(inbox_handler))
+            .route("/users/{user_id}/outbox", get(outbox_handler))
+            .route("/users/{user_id}/followers", get(followers_handler))
+            .route("/users/{user_id}/following", get(following_handler))
+            .layer(self.federation_config.middleware())
+    }
+
+    pub fn event_handler(&self) -> ActivityPubEventHandler {
+        ActivityPubEventHandler::new(self.federation_config.clone(), self.base_url.clone())
+    }
+
+    pub async fn follow(&self, local_user_id: UserId, handle: &str) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+
+        let remote_actor: DbActor = webfinger_resolve_actor(handle, &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let local_actor = get_local_actor(local_user_id.clone(), &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let follow_id = crate::urls::activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?;
+        let follow_id_str = follow_id.to_string();
+        let follow = FollowActivity {
+            id: follow_id,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: ObjectId::from(remote_actor.ap_id.clone()),
+        };
+        let follow_with_ctx = WithContext::new_default(follow);
+
+        let sends = SendActivityTask::prepare(
+            &follow_with_ctx,
+            &local_actor,
+            vec![remote_actor.inbox()],
+            &data,
+        )
+        .await?;
+        let failures = send_with_retry(sends, &data).await;
+        if !failures.is_empty() {
+            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+        }
+
+        let remote = RemoteActor {
+            url: remote_actor.ap_id.to_string(),
+            handle: remote_actor.username.clone(),
+            inbox_url: remote_actor.inbox_url.to_string(),
+            shared_inbox_url: None,
+            display_name: Some(remote_actor.username.clone()),
+        };
+        data.federation_repo
+            .add_following(local_user_id, remote, &follow_id_str)
+            .await?;
+
+        Ok(())
+    }
+
+    pub async fn unfollow(&self, local_user_id: UserId, actor_url_str: &str) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+
+        let remote = data
+            .federation_repo
+            .get_remote_actor(actor_url_str)
+            .await?
+            .ok_or_else(|| anyhow::anyhow!("remote actor not found: {}", actor_url_str))?;
+
+        let local_actor = get_local_actor(local_user_id.clone(), &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let remote_ap_id = Url::parse(actor_url_str)?;
+        let inbox = Url::parse(&remote.inbox_url)?;
+
+        let follow_activity_id_str = data
+            .federation_repo
+            .get_follow_activity_id(local_user_id.clone(), actor_url_str)
+            .await?;
+        let follow_id = match follow_activity_id_str {
+            Some(id) => Url::parse(&id)?,
+            None => crate::urls::activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?,
+        };
+        let follow = FollowActivity {
+            id: follow_id,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: ObjectId::from(remote_ap_id),
+        };
+
+        let undo_id = crate::urls::activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?;
+        let undo = UndoActivity {
+            id: undo_id,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: follow,
+        };
+        let undo_with_ctx = WithContext::new_default(undo);
+
+        let sends =
+            SendActivityTask::prepare(&undo_with_ctx, &local_actor, vec![inbox], &data).await?;
+        let failures = send_with_retry(sends, &data).await;
+        if !failures.is_empty() {
+            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+        }
+
+        data.federation_repo
+            .remove_following(local_user_id, actor_url_str)
+            .await?;
+
+        data.federation_repo
+            .delete_remote_reviews_by_actor(actor_url_str)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        Ok(())
+    }
+
+    pub async fn get_following(&self, local_user_id: UserId) -> anyhow::Result<Vec<RemoteActor>> {
+        let data = self.federation_config.to_request_data();
+        data.federation_repo.get_following(local_user_id).await
+    }
+
+    pub async fn count_following(&self, local_user_id: UserId) -> anyhow::Result<usize> {
+        let data = self.federation_config.to_request_data();
+        data.federation_repo.count_following(local_user_id).await
+    }
+
+    pub async fn accept_follower(
+        &self,
+        local_user_id: UserId,
+        remote_actor_url: &str,
+    ) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+        let local_actor = get_local_actor(local_user_id.clone(), &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let remote_actor = data
+            .federation_repo
+            .get_remote_actor(remote_actor_url)
+            .await?
+            .ok_or_else(|| anyhow::anyhow!("remote actor not found"))?;
+
+        let follow_id_str = data
+            .federation_repo
+            .get_follower_follow_activity_id(local_user_id.clone(), remote_actor_url)
+            .await?
+            .ok_or_else(|| anyhow::anyhow!("follow activity id not found for {}", remote_actor_url))?;
+        let follow_id = Url::parse(&follow_id_str)?;
+        let follow = FollowActivity {
+            id: follow_id,
+            kind: Default::default(),
+            actor: ObjectId::from(Url::parse(remote_actor_url)?),
+            object: ObjectId::from(local_actor.ap_id.clone()),
+        };
+        let accept = AcceptActivity {
+            id: crate::urls::activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: follow,
+        };
+
+        // Update status first so local state is correct even if delivery fails
+        data.federation_repo
+            .update_follower_status(local_user_id.clone(), remote_actor_url, FollowerStatus::Accepted)
+            .await?;
+
+        let inbox = Url::parse(&remote_actor.inbox_url)?;
+        let sends = SendActivityTask::prepare(
+            &WithContext::new_default(accept),
+            &local_actor,
+            vec![inbox.clone()],
+            &data,
+        )
+        .await?;
+        let failures = send_with_retry(sends, &data).await;
+        if !failures.is_empty() {
+            tracing::warn!("failed to deliver Accept activity, but follower is marked accepted locally");
+        }
+
+        self.spawn_backfill(local_user_id, remote_actor.inbox_url.clone());
+
+        Ok(())
+    }
+
+    pub async fn reject_follower(
+        &self,
+        local_user_id: UserId,
+        remote_actor_url: &str,
+    ) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+        let local_actor = get_local_actor(local_user_id.clone(), &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let remote_actor = data
+            .federation_repo
+            .get_remote_actor(remote_actor_url)
+            .await?
+            .ok_or_else(|| anyhow::anyhow!("remote actor not found"))?;
+
+        let follow_id = crate::urls::activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?;
+        let follow = FollowActivity {
+            id: follow_id,
+            kind: Default::default(),
+            actor: ObjectId::from(Url::parse(remote_actor_url)?),
+            object: ObjectId::from(local_actor.ap_id.clone()),
+        };
+        let reject = RejectActivity {
+            id: crate::urls::activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object: follow,
+        };
+
+        let inbox = Url::parse(&remote_actor.inbox_url)?;
+        let sends = SendActivityTask::prepare(
+            &WithContext::new_default(reject),
+            &local_actor,
+            vec![inbox],
+            &data,
+        )
+        .await?;
+        let failures = send_with_retry(sends, &data).await;
+        if !failures.is_empty() {
+            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+        }
+
+        data.federation_repo
+            .remove_follower(local_user_id, remote_actor_url)
+            .await?;
+
+        Ok(())
+    }
+
+    pub async fn get_pending_followers(
+        &self,
+        local_user_id: UserId,
+    ) -> anyhow::Result<Vec<RemoteActor>> {
+        let data = self.federation_config.to_request_data();
+        data.federation_repo
+            .get_pending_followers(local_user_id)
+            .await
+    }
+
+    pub async fn get_accepted_followers(
+        &self,
+        local_user_id: UserId,
+    ) -> anyhow::Result<Vec<RemoteActor>> {
+        let data = self.federation_config.to_request_data();
+        let followers = data.federation_repo.get_followers(local_user_id).await?;
+        Ok(followers
+            .into_iter()
+            .filter(|f| f.status == FollowerStatus::Accepted)
+            .map(|f| f.actor)
+            .collect())
+    }
+
+    pub async fn count_accepted_followers(&self, local_user_id: UserId) -> anyhow::Result<usize> {
+        let data = self.federation_config.to_request_data();
+        let followers = data.federation_repo.get_followers(local_user_id).await?;
+        Ok(followers
+            .into_iter()
+            .filter(|f| f.status == FollowerStatus::Accepted)
+            .count())
+    }
+
+    pub async fn remove_follower(
+        &self,
+        local_user_id: UserId,
+        actor_url: &str,
+    ) -> anyhow::Result<()> {
+        let data = self.federation_config.to_request_data();
+        data.federation_repo.remove_follower(local_user_id, actor_url).await
+    }
+
+    fn spawn_backfill(&self, owner_user_id: UserId, follower_inbox_url: String) {
+        let config = self.federation_config.clone();
+        let base_url = self.base_url.clone();
+
+        tokio::spawn(async move {
+            if let Err(e) = ActivityPubService::run_backfill(
+                config, base_url, owner_user_id, follower_inbox_url,
+            ).await {
+                tracing::warn!(error = %e, "backfill: task failed");
+            }
+        });
+    }
+
+    async fn run_backfill(
+        config: ApFederationConfig,
+        base_url: String,
+        owner_user_id: UserId,
+        follower_inbox_url: String,
+    ) -> anyhow::Result<()> {
+        const BATCH_SIZE: usize = 20;
+
+        let data = config.to_request_data();
+        let local_actor = get_local_actor(owner_user_id.clone(), &data)
+            .await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+        let inbox = Url::parse(&follower_inbox_url)?;
+
+        let history = data.movie_repo.get_user_history(&owner_user_id).await?;
+        let mut local_reviews: Vec<_> = history
+            .into_iter()
+            .filter(|e| matches!(e.review().source(), domain::models::ReviewSource::Local))
+            .collect();
+        local_reviews.reverse(); // oldest first so Mastodon feed is chronological
+
+        let total = local_reviews.len();
+
+        let mut success_count = 0usize;
+        let mut failure_count = 0usize;
+
+        for chunk in local_reviews.chunks(BATCH_SIZE) {
+            for entry in chunk {
+                match ActivityPubService::deliver_review_to_inbox(
+                    entry.review().clone(),
+                    &local_actor,
+                    inbox.clone(),
+                    &data,
+                    &base_url,
+                )
+                .await
+                {
+                    Ok(_) => success_count += 1,
+                    Err(_) => failure_count += 1,
+                }
+            }
+            tokio::time::sleep(std::time::Duration::from_millis(100)).await;
+        }
+
+        tracing::info!(
+            user_id = %owner_user_id.value(),
+            follower = %follower_inbox_url,
+            sent = success_count,
+            failed = failure_count,
+            total = total,
+            "backfill complete"
+        );
+        Ok(())
+    }
+
+    async fn deliver_review_to_inbox(
+        review: domain::models::Review,
+        local_actor: &DbActor,
+        inbox: Url,
+        data: &Data<FederationData>,
+        base_url: &str,
+    ) -> anyhow::Result<()> {
+        use activitypub_federation::traits::Object;
+        use crate::objects::DbReview;
+
+        let review_id = review.id().clone();
+        let ap_id = crate::urls::review_url(base_url, &review_id);
+        let db_review = DbReview { review, ap_id };
+        let object = db_review.into_json(data).await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        let activity_id = crate::urls::create_activity_url(base_url, &review_id)
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+        let create = CreateActivity {
+            id: activity_id,
+            kind: Default::default(),
+            actor: ObjectId::from(local_actor.ap_id.clone()),
+            object,
+        };
+
+        let sends = SendActivityTask::prepare(
+            &WithContext::new_default(create),
+            local_actor,
+            vec![inbox],
+            data,
+        ).await?;
+        let failures = send_with_retry(sends, data).await;
+        if let Some(e) = failures.into_iter().next() {
+            return Err(e);
+        }
+        Ok(())
+    }
+}

crates/adapters/activitypub/src/urls.rs

@@ -0,0 +1,14 @@
+use url::Url;
+use domain::value_objects::ReviewId;
+
+/// Builds the canonical actor URL: `{base_url}/users/{user_id}`
+pub fn actor_url(base_url: &str, user_id: uuid::Uuid) -> Url {
+    Url::parse(&format!("{}/users/{}", base_url, user_id))
+        .expect("base_url is always a valid URL prefix")
+}
+
+/// Builds the canonical review URL: `{base_url}/reviews/{review_id}`
+pub fn review_url(base_url: &str, review_id: &ReviewId) -> Url {
+    Url::parse(&format!("{}/reviews/{}", base_url, review_id.value()))
+        .expect("base_url is always a valid URL prefix")
+}

crates/adapters/activitypub/src/user_adapter.rs

@@ -0,0 +1,28 @@
+use std::sync::Arc;
+
+use activitypub_base::{ApUser, ApUserRepository};
+use async_trait::async_trait;
+use domain::{ports::UserRepository, value_objects::UserId};
+
+pub struct DomainUserRepoAdapter(pub Arc<dyn UserRepository>);
+
+#[async_trait]
+impl ApUserRepository for DomainUserRepoAdapter {
+    async fn find_by_id(&self, id: uuid::Uuid) -> anyhow::Result<Option<ApUser>> {
+        let user_id = UserId::from_uuid(id);
+        Ok(self.0.find_by_id(&user_id).await?.map(|u| ApUser {
+            id: u.id().value(),
+            username: u.username().value().to_string(),
+        }))
+    }
+
+    async fn find_by_username(&self, username: &str) -> anyhow::Result<Option<ApUser>> {
+        use domain::value_objects::Username;
+        let uname = Username::new(username.to_string())
+            .map_err(|e| anyhow::anyhow!(e.to_string()))?;
+        Ok(self.0.find_by_username(&uname).await?.map(|u| ApUser {
+            id: u.id().value(),
+            username: u.username().value().to_string(),
+        }))
+    }
+}

crates/adapters/activitypub/src/webfinger.rs

@@ -0,0 +1,46 @@
+use activitypub_federation::{
+    config::Data,
+    fetch::webfinger::{build_webfinger_response, extract_webfinger_name, Webfinger},
+};
+use axum::{
+    extract::Query,
+    http::header,
+    response::{IntoResponse, Response},
+};
+use serde::Deserialize;
+
+use domain::value_objects::Username;
+
+use crate::data::FederationData;
+use crate::error::Error;
+
+#[derive(Deserialize)]
+pub struct WebfingerQuery {
+    resource: String,
+}
+
+pub async fn webfinger_handler(
+    Query(query): Query<WebfingerQuery>,
+    data: Data<FederationData>,
+) -> Result<Response, Error> {
+    let name = extract_webfinger_name(&query.resource, &data)?;
+
+    let username = Username::new(name.to_string())
+        .map_err(|e| Error::bad_request(anyhow::anyhow!(e.to_string())))?;
+    let user = data
+        .user_repo
+        .find_by_username(&username)
+        .await
+        .map_err(Error::from)?
+        .ok_or_else(|| Error::not_found(anyhow::anyhow!("user not found")))?;
+
+    let ap_id = crate::urls::actor_url(&data.base_url, user.id());
+
+    let wf: Webfinger = build_webfinger_response(query.resource, ap_id);
+    let body = serde_json::to_string(&wf)
+        .map_err(|e| Error::from(anyhow::anyhow!(e)))?;
+    Ok((
+        [(header::CONTENT_TYPE, "application/jrd+json")],
+        body,
+    ).into_response())
+}

crates/adapters/auth/Cargo.toml

@@ -4,3 +4,12 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+async-trait = { workspace = true }
+domain = { workspace = true }
+anyhow = { workspace = true }
+chrono = { workspace = true }
+uuid = { workspace = true }
+serde = { version = "1.0", features = ["derive"] }
+jsonwebtoken = "9"
+argon2 = { version = "0.5", features = ["std"] }
+rand_core = { version = "0.6", features = ["getrandom"] }

crates/adapters/auth/src/lib.rs

@@ -1,14 +1,104 @@
-pub fn add(left: u64, right: u64) -> u64 {
-    left + right
+use async_trait::async_trait;
+use argon2::{
+    Argon2,
+    password_hash::{PasswordHasher as _, PasswordVerifier, SaltString},
+};
+use chrono::{Duration, Utc};
+use jsonwebtoken::{DecodingKey, EncodingKey, Header, Validation, decode, encode};
+use rand_core::OsRng;
+use serde::{Deserialize, Serialize};
+use uuid::Uuid;
+
+use domain::{
+    errors::DomainError,
+    ports::{AuthService, GeneratedToken, PasswordHasher},
+    value_objects::{PasswordHash, UserId},
+};
+
+pub struct AuthConfig {
+    secret: String,
+    ttl_seconds: u64,
 }
 
-#[cfg(test)]
-mod tests {
-    use super::*;
+impl AuthConfig {
+    pub fn from_env() -> anyhow::Result<Self> {
+        let secret = std::env::var("JWT_SECRET")
+            .map_err(|_| anyhow::anyhow!("JWT_SECRET env var is required"))?;
+        if secret.is_empty() {
+            anyhow::bail!("JWT_SECRET must not be empty");
+        }
+        let ttl_seconds = std::env::var("JWT_TTL_SECONDS")
+            .ok()
+            .and_then(|v| v.parse().ok())
+            .unwrap_or(86400u64);
+        Ok(Self { secret, ttl_seconds })
+    }
+}
 
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
+#[derive(Serialize, Deserialize)]
+struct Claims {
+    sub: String,
+    exp: u64,
+}
+
+pub struct JwtAuthService {
+    config: AuthConfig,
+}
+
+impl JwtAuthService {
+    pub fn new(config: AuthConfig) -> Self {
+        Self { config }
+    }
+}
+
+#[async_trait]
+impl AuthService for JwtAuthService {
+    async fn generate_token(&self, user_id: &UserId) -> Result<GeneratedToken, DomainError> {
+        let expires_at = Utc::now() + Duration::seconds(self.config.ttl_seconds as i64);
+        let claims = Claims {
+            sub: user_id.value().to_string(),
+            exp: expires_at.timestamp() as u64,
+        };
+        let token = encode(
+            &Header::default(),
+            &claims,
+            &EncodingKey::from_secret(self.config.secret.as_bytes()),
+        )
+        .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+        Ok(GeneratedToken { token, expires_at })
+    }
+
+    async fn validate_token(&self, token: &str) -> Result<UserId, DomainError> {
+        let data = decode::<Claims>(
+            token,
+            &DecodingKey::from_secret(self.config.secret.as_bytes()),
+            &Validation::default(),
+        )
+        .map_err(|_| DomainError::Unauthorized("Invalid or expired token".into()))?;
+        let uuid = Uuid::parse_str(&data.claims.sub)
+            .map_err(|_| DomainError::Unauthorized("Invalid token subject".into()))?;
+        Ok(UserId::from_uuid(uuid))
+    }
+}
+
+pub struct Argon2PasswordHasher;
+
+#[async_trait]
+impl PasswordHasher for Argon2PasswordHasher {
+    async fn hash(&self, plain_password: &str) -> Result<PasswordHash, DomainError> {
+        let salt = SaltString::generate(&mut OsRng);
+        let hash = Argon2::default()
+            .hash_password(plain_password.as_bytes(), &salt)
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?
+            .to_string();
+        PasswordHash::new(hash).map_err(|e| DomainError::InfrastructureError(e.to_string()))
+    }
+
+    async fn verify(&self, plain_password: &str, hash: &PasswordHash) -> Result<bool, DomainError> {
+        let parsed = argon2::password_hash::PasswordHash::new(hash.value())
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+        Ok(Argon2::default()
+            .verify_password(plain_password.as_bytes(), &parsed)
+            .is_ok())
     }
 }

crates/adapters/event-publisher/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "event-publisher"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+domain      = { workspace = true }
+async-trait = { workspace = true }
+tokio       = { workspace = true }
+tracing     = { workspace = true }

crates/adapters/event-publisher/src/lib.rs

@@ -0,0 +1,226 @@
+use async_trait::async_trait;
+use domain::{errors::DomainError, events::DomainEvent, ports::EventPublisher};
+use tokio::sync::mpsc;
+
+pub struct EventPublisherConfig {
+    pub channel_buffer: usize,
+}
+
+impl EventPublisherConfig {
+    pub fn from_env() -> Self {
+        let channel_buffer = std::env::var("EVENT_CHANNEL_BUFFER")
+            .ok()
+            .and_then(|v| v.parse().ok())
+            .unwrap_or(128);
+        Self { channel_buffer }
+    }
+}
+
+#[async_trait]
+pub trait EventHandler: Send + Sync {
+    async fn handle(&self, event: &DomainEvent) -> Result<(), DomainError>;
+}
+
+pub struct ChannelEventPublisher {
+    sender: mpsc::Sender<DomainEvent>,
+}
+
+#[async_trait]
+impl EventPublisher for ChannelEventPublisher {
+    async fn publish(&self, event: &DomainEvent) -> Result<(), DomainError> {
+        self.sender
+            .send(event.clone())
+            .await
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))
+    }
+}
+
+pub struct EventWorker {
+    receiver: mpsc::Receiver<DomainEvent>,
+    handlers: Vec<Box<dyn EventHandler>>,
+}
+
+impl EventWorker {
+    pub async fn run(mut self) {
+        while let Some(event) = self.receiver.recv().await {
+            match &event {
+                DomainEvent::ReviewLogged {
+                    review_id,
+                    movie_id,
+                    user_id,
+                    rating,
+                    watched_at,
+                } => {
+                    tracing::info!(
+                        review_id  = %review_id.value(),
+                        movie_id   = %movie_id.value(),
+                        user_id    = %user_id.value(),
+                        rating     = rating.value(),
+                        watched_at = %watched_at,
+                        "event: review_logged"
+                    );
+                }
+                DomainEvent::ReviewUpdated {
+                    review_id,
+                    movie_id,
+                    user_id,
+                    rating,
+                    watched_at,
+                } => {
+                    tracing::info!(
+                        review_id  = %review_id.value(),
+                        movie_id   = %movie_id.value(),
+                        user_id    = %user_id.value(),
+                        rating     = rating.value(),
+                        watched_at = %watched_at,
+                        "event: review_updated"
+                    );
+                }
+                DomainEvent::MovieDiscovered {
+                    movie_id,
+                    external_metadata_id,
+                } => {
+                    tracing::info!(
+                        movie_id    = %movie_id.value(),
+                        external_id = external_metadata_id.value(),
+                        "event: movie_discovered"
+                    );
+                }
+            }
+            for handler in &self.handlers {
+                if let Err(e) = handler.handle(&event).await {
+                    tracing::error!("event handler error: {e}");
+                }
+            }
+        }
+        tracing::info!("event worker shut down");
+    }
+}
+
+pub struct NoopEventPublisher;
+
+#[async_trait]
+impl EventPublisher for NoopEventPublisher {
+    async fn publish(&self, _event: &DomainEvent) -> Result<(), DomainError> {
+        Ok(())
+    }
+}
+
+pub fn create_event_channel(
+    config: EventPublisherConfig,
+    handlers: Vec<Box<dyn EventHandler>>,
+) -> (ChannelEventPublisher, EventWorker) {
+    let (tx, rx) = mpsc::channel(config.channel_buffer);
+    (
+        ChannelEventPublisher { sender: tx },
+        EventWorker {
+            receiver: rx,
+            handlers,
+        },
+    )
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::sync::{Arc, Mutex};
+    use domain::{
+        errors::DomainError,
+        events::DomainEvent,
+        value_objects::{ExternalMetadataId, MovieId},
+    };
+
+    struct RecordingHandler {
+        calls: Arc<Mutex<Vec<String>>>,
+    }
+
+    #[async_trait]
+    impl EventHandler for RecordingHandler {
+        async fn handle(&self, event: &DomainEvent) -> Result<(), DomainError> {
+            let label = match event {
+                DomainEvent::ReviewLogged { .. } => "review_logged",
+                DomainEvent::ReviewUpdated { .. } => "review_updated",
+                DomainEvent::MovieDiscovered { .. } => "movie_discovered",
+            };
+            self.calls.lock().unwrap().push(label.to_string());
+            Ok(())
+        }
+    }
+
+    #[tokio::test]
+    async fn single_handler_receives_event() {
+        let calls = Arc::new(Mutex::new(vec![]));
+        let handler = RecordingHandler { calls: Arc::clone(&calls) };
+        let config = EventPublisherConfig { channel_buffer: 8 };
+        let (publisher, worker) = create_event_channel(config, vec![Box::new(handler)]);
+
+        let handle = tokio::spawn(worker.run());
+
+        let event = DomainEvent::MovieDiscovered {
+            movie_id: MovieId::generate(),
+            external_metadata_id: ExternalMetadataId::new("tt1234567".into()).unwrap(),
+        };
+        publisher.publish(&event).await.unwrap();
+        drop(publisher);
+        handle.await.unwrap();
+
+        assert_eq!(*calls.lock().unwrap(), vec!["movie_discovered"]);
+    }
+
+    #[tokio::test]
+    async fn multiple_handlers_all_receive_event() {
+        let calls1 = Arc::new(Mutex::new(vec![]));
+        let calls2 = Arc::new(Mutex::new(vec![]));
+        let handler1 = RecordingHandler { calls: Arc::clone(&calls1) };
+        let handler2 = RecordingHandler { calls: Arc::clone(&calls2) };
+        let config = EventPublisherConfig { channel_buffer: 8 };
+        let (publisher, worker) = create_event_channel(
+            config,
+            vec![Box::new(handler1), Box::new(handler2)],
+        );
+
+        let handle = tokio::spawn(worker.run());
+
+        let event = DomainEvent::MovieDiscovered {
+            movie_id: MovieId::generate(),
+            external_metadata_id: ExternalMetadataId::new("tt9999999".into()).unwrap(),
+        };
+        publisher.publish(&event).await.unwrap();
+        drop(publisher);
+        handle.await.unwrap();
+
+        assert_eq!(calls1.lock().unwrap().len(), 1);
+        assert_eq!(calls2.lock().unwrap().len(), 1);
+    }
+
+    #[tokio::test]
+    async fn handler_error_does_not_stop_worker() {
+        struct FailingHandler;
+        #[async_trait]
+        impl EventHandler for FailingHandler {
+            async fn handle(&self, _: &DomainEvent) -> Result<(), DomainError> {
+                Err(DomainError::InfrastructureError("boom".into()))
+            }
+        }
+
+        let calls = Arc::new(Mutex::new(vec![]));
+        let good = RecordingHandler { calls: Arc::clone(&calls) };
+        let config = EventPublisherConfig { channel_buffer: 8 };
+        let (publisher, worker) = create_event_channel(
+            config,
+            vec![Box::new(FailingHandler), Box::new(good)],
+        );
+
+        let handle = tokio::spawn(worker.run());
+
+        let event = DomainEvent::MovieDiscovered {
+            movie_id: MovieId::generate(),
+            external_metadata_id: ExternalMetadataId::new("tt0000001".into()).unwrap(),
+        };
+        publisher.publish(&event).await.unwrap();
+        drop(publisher);
+        handle.await.unwrap();
+
+        assert_eq!(calls.lock().unwrap().len(), 1);
+    }
+}

crates/adapters/metadata/Cargo.toml

@@ -4,3 +4,7 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+async-trait = { workspace = true }
+reqwest = { workspace = true }
+serde = { workspace = true }
+domain = { workspace = true }

crates/adapters/metadata/src/lib.rs

@@ -1,14 +1,54 @@
-pub fn add(left: u64, right: u64) -> u64 {
-    left + right
+use async_trait::async_trait;
+use domain::{
+    errors::DomainError,
+    models::Movie,
+    ports::{MetadataClient, MetadataSearchCriteria},
+    value_objects::{ExternalMetadataId, MovieTitle, PosterUrl, ReleaseYear},
+};
+
+mod omdb;
+
+pub(crate) struct ProviderMovie {
+    pub imdb_id: ExternalMetadataId,
+    pub title: MovieTitle,
+    pub release_year: ReleaseYear,
+    pub director: Option<String>,
+    pub poster_url: Option<PosterUrl>,
 }
 
-#[cfg(test)]
-mod tests {
-    use super::*;
+#[async_trait]
+pub(crate) trait MetadataProvider: Send + Sync {
+    async fn fetch(&self, criteria: &MetadataSearchCriteria) -> Result<ProviderMovie, DomainError>;
+}
 
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
+pub struct MetadataClientImpl {
+    provider: Box<dyn MetadataProvider>,
+}
+
+impl MetadataClientImpl {
+    pub fn new_omdb(api_key: String) -> Self {
+        Self {
+            provider: Box::new(omdb::OmdbProvider::new(api_key)),
+        }
+    }
+}
+
+#[async_trait]
+impl MetadataClient for MetadataClientImpl {
+    async fn fetch_movie_metadata(
+        &self,
+        criteria: &MetadataSearchCriteria,
+    ) -> Result<Movie, DomainError> {
+        let pm = self.provider.fetch(criteria).await?;
+        Ok(Movie::new(Some(pm.imdb_id), pm.title, pm.release_year, pm.director, None))
+    }
+
+    async fn get_poster_url(
+        &self,
+        external_metadata_id: &ExternalMetadataId,
+    ) -> Result<Option<PosterUrl>, DomainError> {
+        let criteria = MetadataSearchCriteria::ImdbId(external_metadata_id.clone());
+        let pm = self.provider.fetch(&criteria).await?;
+        Ok(pm.poster_url)
     }
 }

crates/adapters/metadata/src/omdb.rs

@@ -0,0 +1,119 @@
+use async_trait::async_trait;
+use domain::{
+    errors::DomainError,
+    ports::MetadataSearchCriteria,
+    value_objects::{ExternalMetadataId, MovieTitle, PosterUrl, ReleaseYear},
+};
+use serde::Deserialize;
+
+use crate::{MetadataProvider, ProviderMovie};
+
+pub(crate) struct OmdbProvider {
+    client: reqwest::Client,
+    api_key: String,
+    base_url: String,
+}
+
+impl OmdbProvider {
+    pub(crate) fn new(api_key: String) -> Self {
+        Self {
+            client: reqwest::Client::new(),
+            api_key,
+            base_url: "http://www.omdbapi.com/".to_string(),
+        }
+    }
+}
+
+#[derive(Deserialize)]
+struct OmdbResponse {
+    #[serde(rename = "Title")]
+    title: String,
+    #[serde(rename = "Year")]
+    year: String,
+    #[serde(rename = "Director")]
+    director: String,
+    #[serde(rename = "Poster")]
+    poster: String,
+    #[serde(rename = "imdbID")]
+    imdb_id: String,
+    #[serde(rename = "Response")]
+    response: String,
+    #[serde(rename = "Error")]
+    error: Option<String>,
+}
+
+#[async_trait]
+impl MetadataProvider for OmdbProvider {
+    async fn fetch(&self, criteria: &MetadataSearchCriteria) -> Result<ProviderMovie, DomainError> {
+        let mut url = reqwest::Url::parse(&self.base_url)
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+
+        {
+            let mut params = url.query_pairs_mut();
+            params.append_pair("apikey", &self.api_key);
+            match criteria {
+                MetadataSearchCriteria::ImdbId(id) => {
+                    params.append_pair("i", id.value());
+                }
+                MetadataSearchCriteria::Title { title, year } => {
+                    params.append_pair("t", title.value());
+                    if let Some(y) = year {
+                        params.append_pair("y", &y.value().to_string());
+                    }
+                }
+            }
+        }
+
+        let http_resp = self
+            .client
+            .get(url)
+            .send()
+            .await
+            .map_err(|e: reqwest::Error| DomainError::InfrastructureError(e.to_string()))?
+            .error_for_status()
+            .map_err(|e: reqwest::Error| DomainError::InfrastructureError(e.to_string()))?;
+
+        let resp: OmdbResponse = http_resp
+            .json()
+            .await
+            .map_err(|e: reqwest::Error| DomainError::InfrastructureError(e.to_string()))?;
+
+        if resp.response != "True" {
+            let msg = resp.error.unwrap_or_default();
+            return if msg.to_lowercase().contains("not found") {
+                Err(DomainError::NotFound(msg))
+            } else {
+                Err(DomainError::InfrastructureError(msg))
+            };
+        }
+
+        let year: u16 = resp
+            .year
+            .chars()
+            .take(4)
+            .collect::<String>()
+            .parse()
+            .map_err(|_| {
+                DomainError::InfrastructureError(format!("Unparseable year: {}", resp.year))
+            })?;
+
+        let imdb_id = ExternalMetadataId::new(resp.imdb_id)
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+        let title = MovieTitle::new(resp.title)
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+        let release_year = ReleaseYear::new(year)
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+
+        let director = match resp.director.as_str() {
+            "N/A" | "" => None,
+            d => Some(d.to_string()),
+        };
+
+        let poster_url = match resp.poster.as_str() {
+            "N/A" | "" => None,
+            url => PosterUrl::new(url.to_string()).ok(),
+        };
+
+        Ok(ProviderMovie { imdb_id, title, release_year, director, poster_url })
+    }
+}

crates/adapters/poster-fetcher/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "poster-fetcher"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+domain = { workspace = true }
+async-trait = { workspace = true }
+reqwest = { workspace = true }
+anyhow = { workspace = true }

crates/adapters/poster-fetcher/src/config.rs

@@ -0,0 +1,13 @@
+pub struct PosterFetcherConfig {
+    pub timeout_seconds: u64,
+}
+
+impl PosterFetcherConfig {
+    pub fn from_env() -> Self {
+        let timeout_seconds = std::env::var("POSTER_FETCH_TIMEOUT_SECONDS")
+            .ok()
+            .and_then(|v| v.parse().ok())
+            .unwrap_or(30);
+        Self { timeout_seconds }
+    }
+}

crates/adapters/poster-fetcher/src/lib.rs

@@ -0,0 +1,38 @@
+mod config;
+pub use config::PosterFetcherConfig;
+
+use std::time::Duration;
+
+use async_trait::async_trait;
+use domain::{errors::DomainError, ports::PosterFetcherClient, value_objects::PosterUrl};
+
+pub struct ReqwestPosterFetcher {
+    client: reqwest::Client,
+}
+
+impl ReqwestPosterFetcher {
+    pub fn new(config: PosterFetcherConfig) -> anyhow::Result<Self> {
+        let client = reqwest::Client::builder()
+            .timeout(Duration::from_secs(config.timeout_seconds))
+            .build()?;
+        Ok(Self { client })
+    }
+}
+
+#[async_trait]
+impl PosterFetcherClient for ReqwestPosterFetcher {
+    async fn fetch_poster_bytes(&self, poster_url: &PosterUrl) -> Result<Vec<u8>, DomainError> {
+        let bytes = self
+            .client
+            .get(poster_url.value())
+            .send()
+            .await
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?
+            .error_for_status()
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?
+            .bytes()
+            .await
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+        Ok(bytes.to_vec())
+    }
+}

crates/adapters/poster-storage/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "poster-storage"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+domain = { workspace = true }
+anyhow = { workspace = true }
+async-trait = { workspace = true }
+tracing = { workspace = true }
+object_store = { workspace = true }
+infer = "0.19.0"
+
+[dev-dependencies]
+tokio = { workspace = true }
+uuid = { workspace = true }

crates/adapters/poster-storage/src/config.rs

@@ -0,0 +1,86 @@
+use anyhow::Context;
+use object_store::{ObjectStore, aws::AmazonS3Builder, local::LocalFileSystem};
+use std::sync::Arc;
+
+pub struct StorageConfig(Arc<dyn ObjectStore>);
+
+impl StorageConfig {
+    pub fn from_env() -> anyhow::Result<Self> {
+        let backend = std::env::var("POSTER_STORAGE_BACKEND")
+            .context("POSTER_STORAGE_BACKEND required (valid values: s3, local)")?;
+
+        let store: Arc<dyn ObjectStore> = match backend.as_str() {
+            "s3" => build_s3_store(
+                &std::env::var("MINIO_ENDPOINT").context("MINIO_ENDPOINT required")?,
+                &std::env::var("MINIO_ACCESS_KEY_ID").context("MINIO_ACCESS_KEY_ID required")?,
+                &std::env::var("MINIO_SECRET_ACCESS_KEY")
+                    .context("MINIO_SECRET_ACCESS_KEY required")?,
+                &std::env::var("MINIO_BUCKET").context("MINIO_BUCKET required")?,
+                &std::env::var("MINIO_REGION").unwrap_or_else(|_| "minio".to_string()),
+            )?,
+            "local" => build_local_store(
+                &std::env::var("POSTER_STORAGE_PATH")
+                    .context("POSTER_STORAGE_PATH required when POSTER_STORAGE_BACKEND=local")?,
+            )?,
+            other => anyhow::bail!(
+                "Unknown POSTER_STORAGE_BACKEND: {other:?}. Valid values: s3, local"
+            ),
+        };
+
+        Ok(Self(store))
+    }
+
+    pub fn build_store(self) -> Arc<dyn ObjectStore> {
+        self.0
+    }
+}
+
+fn build_s3_store(
+    endpoint: &str,
+    access_key_id: &str,
+    secret_access_key: &str,
+    bucket: &str,
+    region: &str,
+) -> anyhow::Result<Arc<dyn ObjectStore>> {
+    let store = AmazonS3Builder::new()
+        .with_endpoint(endpoint)
+        .with_access_key_id(access_key_id)
+        .with_secret_access_key(secret_access_key)
+        .with_bucket_name(bucket)
+        .with_region(region)
+        .with_allow_http(true)
+        .build()
+        .context("Failed to build S3/Minio store")?;
+    Ok(Arc::new(store))
+}
+
+fn build_local_store(path: &str) -> anyhow::Result<Arc<dyn ObjectStore>> {
+    std::fs::create_dir_all(path)
+        .context("Failed to create poster storage directory")?;
+    let store = LocalFileSystem::new_with_prefix(path)
+        .context("Failed to initialise local file system store")?;
+    Ok(Arc::new(store))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn local_store_creates_dir_and_succeeds() {
+        let dir = std::env::temp_dir()
+            .join(format!("poster_test_{}", uuid::Uuid::new_v4()));
+        let result = build_local_store(dir.to_str().unwrap());
+        assert!(result.is_ok(), "expected Ok, got: {:?}", result.err());
+        assert!(dir.exists(), "directory should have been created");
+    }
+
+    #[test]
+    fn local_store_succeeds_if_dir_already_exists() {
+        let dir = std::env::temp_dir()
+            .join(format!("poster_test_{}", uuid::Uuid::new_v4()));
+        std::fs::create_dir_all(&dir).unwrap();
+        let result = build_local_store(dir.to_str().unwrap());
+        assert!(result.is_ok());
+    }
+}

crates/adapters/poster-storage/src/lib.rs

@@ -0,0 +1,95 @@
+mod config;
+pub use config::StorageConfig;
+
+use async_trait::async_trait;
+use domain::{
+    errors::DomainError,
+    ports::PosterStorage,
+    value_objects::{MovieId, PosterPath},
+};
+use object_store::{Attribute, Attributes, PutOptions, path::Path, ObjectStore};
+use std::sync::Arc;
+
+fn detect_mime(bytes: &[u8]) -> &'static str {
+    infer::get(bytes)
+        .map(|t| t.mime_type())
+        .unwrap_or("application/octet-stream")
+}
+
+pub struct PosterStorageAdapter {
+    store: Arc<dyn ObjectStore>,
+}
+
+impl PosterStorageAdapter {
+    pub fn new(store: Arc<dyn ObjectStore>) -> Self {
+        Self { store }
+    }
+
+    pub fn from_config(config: StorageConfig) -> Self {
+        Self::new(config.build_store())
+    }
+}
+
+#[async_trait]
+impl PosterStorage for PosterStorageAdapter {
+    async fn store_poster(
+        &self,
+        movie_id: &MovieId,
+        image_bytes: &[u8],
+    ) -> Result<PosterPath, DomainError> {
+        let path = Path::from(movie_id.value().to_string());
+        let mime = detect_mime(image_bytes);
+        let mut attributes = Attributes::new();
+        attributes.insert(Attribute::ContentType, mime.into());
+        let opts = PutOptions { attributes, ..Default::default() };
+        self.store
+            .put_opts(&path, image_bytes.to_vec().into(), opts)
+            .await
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+        PosterPath::new(path.to_string())
+    }
+
+    async fn get_poster(&self, poster_path: &PosterPath) -> Result<Vec<u8>, DomainError> {
+        let path = Path::from(poster_path.value().to_string());
+        let result = self.store.get(&path).await.map_err(|e| match e {
+            object_store::Error::NotFound { .. } => DomainError::NotFound("Poster not found".into()),
+            _ => DomainError::InfrastructureError(e.to_string()),
+        })?;
+        result
+            .bytes()
+            .await
+            .map(|b| b.to_vec())
+            .map_err(|e| DomainError::InfrastructureError(e.to_string()))
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use object_store::memory::InMemory;
+    use uuid::Uuid;
+
+    fn adapter() -> PosterStorageAdapter {
+        PosterStorageAdapter::new(Arc::new(InMemory::new()))
+    }
+
+    #[tokio::test]
+    async fn store_and_retrieve_round_trip() {
+        let adapter = adapter();
+        let movie_id = MovieId::from_uuid(Uuid::new_v4());
+        let bytes = b"fake-image-bytes";
+
+        let path = adapter.store_poster(&movie_id, bytes).await.unwrap();
+        let retrieved = adapter.get_poster(&path).await.unwrap();
+
+        assert_eq!(retrieved, bytes);
+    }
+
+    #[tokio::test]
+    async fn get_missing_returns_not_found() {
+        let adapter = adapter();
+        let path = PosterPath::new("nonexistent".into()).unwrap();
+        let result = adapter.get_poster(&path).await;
+        assert!(matches!(result, Err(DomainError::NotFound(_))));
+    }
+}

crates/adapters/rss/Cargo.toml

@@ -4,3 +4,7 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+rss-feed = { package = "rss", version = "2" }
+chrono = { workspace = true }
+domain = { workspace = true }
+application = { workspace = true }

crates/adapters/rss/src/lib.rs

@@ -1,5 +1,59 @@
-pub fn add(left: u64, right: u64) -> u64 {
-    left + right
+use application::ports::RssFeedRenderer;
+use domain::models::DiaryEntry;
+use rss_feed::{ChannelBuilder, GuidBuilder, ItemBuilder};
+
+pub struct RssAdapter {
+    feed_link: String,
+}
+
+impl RssAdapter {
+    pub fn new(feed_link: String) -> Self {
+        Self { feed_link }
+    }
+}
+
+impl RssFeedRenderer for RssAdapter {
+    fn render_feed(&self, entries: &[DiaryEntry], title: &str) -> Result<String, String> {
+        let items = entries
+            .iter()
+            .map(|e| {
+                let item_title = format!(
+                    "{} ({})",
+                    e.movie().title().value(),
+                    e.movie().release_year().value()
+                );
+                let description = match e.review().comment() {
+                    Some(c) => format!("{}/5 — {}", e.review().rating().value(), c.value()),
+                    None => format!("{}/5", e.review().rating().value()),
+                };
+                let pub_date = e
+                    .review()
+                    .watched_at()
+                    .and_utc()
+                    .format("%a, %d %b %Y %H:%M:%S +0000")
+                    .to_string();
+                let guid = GuidBuilder::default()
+                    .value(e.review().id().value().to_string())
+                    .permalink(false)
+                    .build();
+                ItemBuilder::default()
+                    .title(Some(item_title))
+                    .description(Some(description))
+                    .pub_date(Some(pub_date))
+                    .guid(Some(guid))
+                    .build()
+            })
+            .collect::<Vec<_>>();
+
+        let channel = ChannelBuilder::default()
+            .title(title.to_string())
+            .link(self.feed_link.clone())
+            .description(title.to_string())
+            .items(items)
+            .build();
+
+        Ok(channel.to_string())
+    }
 }
 
 #[cfg(test)]
@@ -7,8 +61,16 @@ mod tests {
     use super::*;
 
     #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
+    fn render_feed_uses_provided_title() {
+        let adapter = RssAdapter::new("http://example.com".into());
+        let xml = adapter.render_feed(&[], "Custom Title").unwrap();
+        assert!(xml.contains("<title>Custom Title</title>"));
+    }
+
+    #[test]
+    fn render_feed_empty_entries_produces_valid_xml() {
+        let adapter = RssAdapter::new("http://example.com".into());
+        let xml = adapter.render_feed(&[], "My Feed").unwrap();
+        assert!(xml.starts_with("<?xml") || xml.starts_with("<rss"));
     }
 }

crates/adapters/sqlite/.sqlx/query-01a08873b7fa815ad98a56a0902b60414cfcdc2c7a8570351320c4bc425347c6.json

@@ -0,0 +1,92 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                        r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at\n                 FROM reviews r\n                 INNER JOIN movies m ON m.id = r.movie_id\n                 WHERE r.movie_id = ?\n                 ORDER BY r.watched_at ASC\n                 LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false
+    ]
+  },
+  "hash": "01a08873b7fa815ad98a56a0902b60414cfcdc2c7a8570351320c4bc425347c6"
+}

crates/adapters/sqlite/.sqlx/query-026e2afeb573707cb360fcdab8f6137aabfaf603b5ed57b98ac2888b4a0389ff.json

@@ -0,0 +1,92 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                        r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at\n                 FROM reviews r\n                 INNER JOIN movies m ON m.id = r.movie_id\n                 ORDER BY r.watched_at DESC\n                 LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 2
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false
+    ]
+  },
+  "hash": "026e2afeb573707cb360fcdab8f6137aabfaf603b5ed57b98ac2888b4a0389ff"
+}

crates/adapters/sqlite/.sqlx/query-0963b9661182e139cd760bbabb0d6ea3a301a2a3adbdfdda4a88f333a1144c77.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT COUNT(*) FROM reviews",
+  "describe": {
+    "columns": [
+      {
+        "name": "COUNT(*)",
+        "ordinal": 0,
+        "type_info": "Integer"
+      }
+    ],
+    "parameters": {
+      "Right": 0
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "0963b9661182e139cd760bbabb0d6ea3a301a2a3adbdfdda4a88f333a1144c77"
+}

crates/adapters/sqlite/.sqlx/query-167481bb1692cc81531d9a5cd85425e43d09a6df97c335ac347f7cfd61acd171.json

@@ -0,0 +1,32 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, email, password_hash FROM users WHERE email = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "email",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "password_hash",
+        "ordinal": 2,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "167481bb1692cc81531d9a5cd85425e43d09a6df97c335ac347f7cfd61acd171"
+}

crates/adapters/sqlite/.sqlx/query-18de90feb13b9f467f06d0ce25332d9ea7eabc99d9f1a44694e5d10762606f82.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "INSERT OR IGNORE INTO users (id, email, password_hash, created_at) VALUES (?, ?, ?, ?)",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 4
+    },
+    "nullable": []
+  },
+  "hash": "18de90feb13b9f467f06d0ce25332d9ea7eabc99d9f1a44694e5d10762606f82"
+}

crates/adapters/sqlite/.sqlx/query-1bc5a51762717e45292626052f0a65ac0b8a001798a2476ea86143c5565df399.json

@@ -0,0 +1,32 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, email, password_hash FROM users WHERE id = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "email",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "password_hash",
+        "ordinal": 2,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "1bc5a51762717e45292626052f0a65ac0b8a001798a2476ea86143c5565df399"
+}

crates/adapters/sqlite/.sqlx/query-3047579c6ed13ce87aad9b9ce6300c02f0df3516979518976e13f9d9abc6a403.json

@@ -0,0 +1,50 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, external_metadata_id, title, release_year, director, poster_path\n             FROM movies WHERE title = ? AND release_year = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 2
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true
+    ]
+  },
+  "hash": "3047579c6ed13ce87aad9b9ce6300c02f0df3516979518976e13f9d9abc6a403"
+}

crates/adapters/sqlite/.sqlx/query-33d0dae7d16b0635c1c7eb5afd10824bb55af7cc7a854f590d326622863759d1.json

@@ -0,0 +1,50 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, external_metadata_id, title, release_year, director, poster_path\n             FROM movies WHERE id = ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true
+    ]
+  },
+  "hash": "33d0dae7d16b0635c1c7eb5afd10824bb55af7cc7a854f590d326622863759d1"
+}

crates/adapters/sqlite/.sqlx/query-47f7cf95ce3450635b643ab710cadba96f40319140834d510bc5207b2552e055.json

@@ -0,0 +1,92 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,\n                        r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment, r.watched_at, r.created_at\n                 FROM reviews r\n                 INNER JOIN movies m ON m.id = r.movie_id\n                 WHERE r.movie_id = ?\n                 ORDER BY r.watched_at DESC\n                 LIMIT ? OFFSET ?",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "external_metadata_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "title",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "release_year",
+        "ordinal": 3,
+        "type_info": "Integer"
+      },
+      {
+        "name": "director",
+        "ordinal": 4,
+        "type_info": "Text"
+      },
+      {
+        "name": "poster_path",
+        "ordinal": 5,
+        "type_info": "Text"
+      },
+      {
+        "name": "review_id",
+        "ordinal": 6,
+        "type_info": "Text"
+      },
+      {
+        "name": "movie_id",
+        "ordinal": 7,
+        "type_info": "Text"
+      },
+      {
+        "name": "user_id",
+        "ordinal": 8,
+        "type_info": "Text"
+      },
+      {
+        "name": "rating",
+        "ordinal": 9,
+        "type_info": "Integer"
+      },
+      {
+        "name": "comment",
+        "ordinal": 10,
+        "type_info": "Text"
+      },
+      {
+        "name": "watched_at",
+        "ordinal": 11,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at",
+        "ordinal": 12,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": [
+      false,
+      true,
+      false,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false
+    ]
+  },
+  "hash": "47f7cf95ce3450635b643ab710cadba96f40319140834d510bc5207b2552e055"
+}