diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0b745e2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+.env
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index fbf0257..3398ac8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -276,6 +276,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "async-trait",
+ "domain",
  "rand 0.10.0",
  "reqwest",
  "serde",
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..8ab70c0
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1 @@
+MIT
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..86deea3
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# PocketChords
+
+A rip-off of [TabsUltimate](https://www.tabultimateguitar.com/) with a focus on mobile users, without any ads or subscription. It is open source and free to use.
diff --git a/app/app/app.css b/app/app/app.css
index c93d0fd..c6cb28a 100644
--- a/app/app/app.css
+++ b/app/app/app.css
@@ -6,8 +6,9 @@
 @custom-variant dark (&:is(.dark *));
 
 @theme {
-  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif,
-    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+  --font-sans:
+    "Inter", ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji",
+    "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
 }
 
 html,
@@ -21,7 +22,7 @@ body {
 
 @theme inline {
   --font-heading: var(--font-sans);
-  --font-sans: 'Inter Variable', sans-serif;
+  --font-sans: "Inter Variable", sans-serif;
   --color-sidebar-ring: var(--sidebar-ring);
   --color-sidebar-border: var(--sidebar-border);
   --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
@@ -141,4 +142,4 @@ body {
   html {
     @apply font-sans;
   }
-}
\ No newline at end of file
+}
diff --git a/app/app/lib/mock.ts b/app/app/lib/mock.ts
deleted file mode 100644
index 422bdf7..0000000
--- a/app/app/lib/mock.ts
+++ /dev/null
@@ -1,128 +0,0 @@
-import type { Song, SongSummary } from "./types";
-import { previewChords } from "./song-utils";
-
-const OCEAN: Song = {
-  meta: {
-    title: "A Drop In The Ocean",
-    artist: "Ron Pope",
-    capo: null,
-    original_key: "Em",
-    tuning: null,
-    tempo: null,
-  },
-  sections: [
-    {
-      kind: "chorus",
-      label: "Chorus",
-      lines: [
-        {
-          text: "A drop in the ocean,",
-          chords: [{ offset: 0, chord: "Em" }, { offset: 12, chord: "C" }],
-        },
-        {
-          text: "A change in the weather,",
-          chords: [{ offset: 2, chord: "G" }, { offset: 16, chord: "D" }],
-        },
-        {
-          text: "I was praying that you and me might end up together.",
-          chords: [
-            { offset: 6, chord: "Em" },
-            { offset: 17, chord: "C" },
-            { offset: 33, chord: "G" },
-            { offset: 44, chord: "D" },
-          ],
-        },
-      ],
-    },
-    {
-      kind: "verse",
-      label: "Verse",
-      lines: [
-        {
-          text: "I don't wanna waste the weekend,",
-          chords: [{ offset: 0, chord: "C" }, { offset: 15, chord: "G" }],
-        },
-        {
-          text: "If you don't love me, pretend",
-          chords: [{ offset: 3, chord: "D" }, { offset: 21, chord: "Em" }],
-        },
-        {
-          text: "A few more hours, then it's time to go.",
-          chords: [{ offset: 2, chord: "C" }, { offset: 18, chord: "G" }, { offset: 30, chord: "D" }],
-        },
-      ],
-    },
-    {
-      kind: "bridge",
-      label: "Bridge",
-      lines: [
-        {
-          text: "Still I can't let you be,",
-          chords: [{ offset: 0, chord: "Am" }, { offset: 11, chord: "G" }, { offset: 13, chord: "D" }],
-        },
-      ],
-    },
-  ],
-};
-
-const NAKED: Song = {
-  meta: {
-    title: "Naked",
-    artist: "James Arthur",
-    capo: null,
-    original_key: "G",
-    tuning: null,
-    tempo: null,
-  },
-  sections: [
-    {
-      kind: "chorus",
-      label: "Chorus",
-      lines: [
-        {
-          text: "I'm not going to wait until you're done",
-          chords: [{ offset: 0, chord: "G" }, { offset: 18, chord: "Bm" }],
-        },
-        {
-          text: "Pretending you don't need anyone",
-          chords: [{ offset: 16, chord: "Em" }, { offset: 27, chord: "C" }],
-        },
-        {
-          text: "I'm standing here naked",
-          chords: [{ offset: 19, chord: "G" }],
-        },
-      ],
-    },
-    {
-      kind: "verse",
-      label: "Verse",
-      lines: [
-        {
-          text: "I lay awake thinking of all I wasted",
-          chords: [{ offset: 0, chord: "G" }, { offset: 22, chord: "Bm" }],
-        },
-        {
-          text: "All of the time we had I took for granted",
-          chords: [{ offset: 11, chord: "Em" }, { offset: 32, chord: "C" }],
-        },
-      ],
-    },
-  ],
-};
-
-const SONGS_MAP: Record<string, Song> = {
-  "song-ocean": OCEAN,
-  "song-naked": NAKED,
-};
-
-export const MOCK_SONGS: SongSummary[] = Object.entries(SONGS_MAP).map(
-  ([id, song]) => ({
-    id,
-    meta: song.meta,
-    preview_chords: previewChords(song),
-  })
-);
-
-export function getMockSong(id: string): Song | null {
-  return SONGS_MAP[id] ?? null;
-}