diff --git a/default.nix b/default.nix
index 9002524..ad75c7a 100644
--- a/default.nix
+++ b/default.nix
@@ -1,25 +1,50 @@
 {
   lib,
   rustPlatform,
+  # fetchFromGitea,
   pkg-config,
   alsa-lib,
-}:
-rustPlatform.buildRustPackage {
-  name = "war-in-tunnels";
-  pname = "war-in-tunnels";
+  versionCheckHook,
+  nix-update-script,
+}: let
   version = "0.1.0";
+in
+  rustPlatform.buildRustPackage {
+    pname = "war-in-tunnels";
+    inherit version;
 
-  src = ./.;
-  buildInputs = [alsa-lib];
-  nativeBuildInputs = [pkg-config];
-  cargoHash = lib.fakeHash;
+    src = ./.;
+    # src = fetchFromGitea {
+    #   domain = "gitea.garandplg.com";
+    #   owner = "GarandPLG";
+    #   repo = "war-in-tunnels";
+    #   tag = "v${version}";
+    #   hash = lib.fakeHash;
+    # };
 
-  meta = {
-    description = "TUI underground game";
-    homepage = "https://gitea.garandplg.com/GarandPLG/war-in-tunnels";
-    license = lib.licenses.mit;
-    maintainers = [
-      "Garand_PLG"
-    ];
-  };
-}
+    cargoHash = "sha256-Cv/sUzkiQuQS3ybg2glfXucIu+HtPi2brH/D7tqc3Mc=";
+
+    nativeBuildInputs = [pkg-config];
+    buildInputs = [alsa-lib];
+
+    nativeInstallCheckInputs = [versionCheckHook];
+    doInstallCheck = true;
+
+    passthru.updateScript = nix-update-script {};
+
+    postInstall = ''
+      cp -r soundtracks $out/bin
+      mv $out/bin/war_in_tunnels $out/bin/war-in-tunnels
+    '';
+
+    meta = {
+      description = "TUI underground game";
+      homepage = "https://gitea.garandplg.com/GarandPLG/war-in-tunnels";
+      license = lib.licenses.mit;
+      platforms = ["x86_64-linux"];
+      maintainers = with lib.maintainers; [
+        GarandPLG
+      ];
+      mainProgram = "war-in-tunnels";
+    };
+  }
diff --git a/flake.nix b/flake.nix
index a1122fa..d65a4a3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -44,6 +44,10 @@
         src = ./.;
         buildInputs = with pkgs; [alsa-lib];
         nativeBuildInputs = with pkgs; [pkg-config];
+        postInstall = ''
+          cp -r soundtracks $out/bin
+          mv $out/bin/war_in_tunnels $out/bin/war-in-tunnels
+        '';
       };
     };
 
diff --git a/src/app/helpers/block_title.rs b/src/app/helpers/block_title.rs
index 5bf484f..515e03d 100644
--- a/src/app/helpers/block_title.rs
+++ b/src/app/helpers/block_title.rs
@@ -31,7 +31,9 @@ use ratatui::{
 /// # Example
 ///
 /// ```rust
+/// use war_in_tunnels::app::helpers::block_title::block_title_helper;
 /// use ratatui::style::Color;
+/// use ratatui::text::Line;
 ///
 /// let title: Line<'_> = block_title_helper(
 ///     &[
@@ -89,7 +91,9 @@ pub fn block_title_helper<'a>(texts: &[(&'a str, Color)], separator: Option<&'a
 /// # Example
 ///
 /// ```rust
+/// use war_in_tunnels::app::helpers::block_title::block_single_title_helper;
 /// use ratatui::style::Color;
+/// use ratatui::text::Line;
 ///
 /// let title: Line<'_> = block_single_title_helper("Keybindings", Color::Magenta);
 /// // `title` now represents: [ Keybindings ] with “Keybindings” coloured magenta.
diff --git a/src/app/helpers/mod.rs b/src/app/helpers/mod.rs
index dc13391..1a0ee7f 100644
--- a/src/app/helpers/mod.rs
+++ b/src/app/helpers/mod.rs
@@ -1,4 +1,4 @@
-mod block_title;
+pub mod block_title;
 mod cells_area;
 mod main_menu_option;
 mod zoom_level;
diff --git a/src/app/mod.rs b/src/app/mod.rs
index e757bff..14679f5 100644
--- a/src/app/mod.rs
+++ b/src/app/mod.rs
@@ -1,6 +1,6 @@
 mod app;
 mod buildings;
-mod helpers;
+pub mod helpers;
 mod keybind;
 mod keybindings;
 mod state;