add spotify webapp

packages/overlay.nix

@@ -24,5 +24,7 @@ final: prev: {
       inherit helium-widevine;
     };
 
+  spotify-webapp = prev.callPackage (builtins.path { path = ./spotify/package.nix; }) { };
+
   spotifyd = prev.callPackage (builtins.path { path = ./spotifyd/package.nix; }) { };
 }

packages/spotify/package.nix

@@ -0,0 +1,74 @@
+{
+  lib,
+  stdenv,
+  makeDesktopItem,
+  copyDesktopItems,
+  chromium,
+  writeShellScriptBin,
+}:
+
+let
+  pname = "spotify-webapp";
+  version = "1.0.0";
+
+  chromiumWithWidevine = chromium.override {
+    enableWideVine = true;
+  };
+
+  launchScript = writeShellScriptBin "spotify-webapp" ''
+    exec ${chromiumWithWidevine}/bin/chromium \
+      --app=https://open.spotify.com \
+      --class=spotify-webapp \
+      --name=spotify-webapp \
+      --user-data-dir="$HOME/.config/spotify-webapp" \
+      --enable-features=UseOzonePlatform \
+      --ozone-platform=wayland \
+      "$@"
+  '';
+
+in
+stdenv.mkDerivation {
+  inherit pname version;
+
+  dontUnpack = true;
+  dontBuild = true;
+
+  nativeBuildInputs = [ copyDesktopItems ];
+
+  desktopItems = [
+    (makeDesktopItem {
+      name = "spotify-webapp";
+      exec = "spotify-webapp %U";
+      icon = "spotify";
+      desktopName = "Spotify";
+      genericName = "Music Streaming";
+      comment = "Listen to music on Spotify";
+      categories = [
+        "Audio"
+        "Music"
+        "AudioVideo"
+      ];
+      mimeTypes = [ "x-scheme-handler/spotify" ];
+      startupWMClass = "spotify-webapp";
+      startupNotify = true;
+    })
+  ];
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/bin
+    ln -s ${launchScript}/bin/spotify-webapp $out/bin/spotify-webapp
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Spotify web app running in Chromium";
+    homepage = "https://open.spotify.com";
+    license = licenses.free;
+    maintainers = [ ];
+    platforms = platforms.linux;
+    mainProgram = "spotify-webapp";
+  };
+}