📦 Added a TwitchNoSub package with patch

packages/twitchnosub/default.nix

@@ -0,0 +1,42 @@
+{ pkgs, ... }:
+let
+  inherit (pkgs) stdenvNoCC fetchFromGitHub;
+in
+stdenvNoCC.mkDerivation (finalAttrs: {
+  pname = "twitchnosub";
+  version = "0.8.1";
+
+  src = fetchFromGitHub {
+    owner = "besuper";
+    repo = "TwitchNoSub";
+    rev = "refs/tags/${finalAttrs.version}";
+    hash = "sha256-xlWNUiv06ocRwMsnAAI7V7kDlG25psKmZXeODq07MoM=";
+  };
+
+  nativeBuildInputs = with pkgs; [ web-ext ];
+
+  buildPhase = ''
+    runHook preBuild
+
+    mv firefox-manifest.json manifest.json
+    web-ext build
+
+    runHook postBuild
+  '';
+
+  patches = [
+    # See https://github.com/besuper/TwitchNoSub/issues/156#issuecomment-2592337368
+    ./worker.patch
+  ];
+
+  installPhase = ''
+    runHook preInstall
+
+    dst="$out/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"
+    mkdir -p "$dst"
+
+    install -v -m644 "web-ext-artifacts/twitchnosub-${finalAttrs.version}.zip" "$dst/twitchnosub@besuper.com.xpi"
+
+    runHook postInstall
+  '';
+})

packages/twitchnosub/worker.patch

@@ -0,0 +1,22 @@
+diff --git a/src/app.js b/src/app_fixed.js
+index 5cdb5b1..dad4210 100644
+--- a/src/app.js
++++ b/src/app_fixed.js
+@@ -19,9 +19,14 @@ window.Worker = class Worker extends oldWorker {
+         super(twitchBlobUrl);
+
+         this.addEventListener("message", (event) => {
+-            const { data } = event;
+-            if ((data.id === 1 || isVariantA) && data.type === 1) {
+-                this.postMessage({ ...data, arg: [data.arg] });
++            const data = event.data;
++
++            if ((data.id == 1 || isVariantA) && data.type == 1) {
++                const newData = event.data;
++
++                newData.arg = [data.arg];
++
++                this.postMessage(newData);
+             }
+         });
+     }