1. Timeout should be removed on destroy (line 148 and 174 `extension.js`): [EGO Review Guidelines: Timeout](https://gjs.guide/extensions/review-guidelines/review-guidelines.html#remove-main-loop-sources) Create `TimerMenu.destroy()` and do `super.destroy()` inside that function at the end. You should destroy on the instance you are creating (line 284 `extenion.js`). Do the same for `TimerButton.destroy()`. 2. Use `console.*` instead of `log()`: [Port Guide 45: Logging](https://gjs.guide/extensions/upgrading/gnome-shell-45.html#logging) 3. Please remove `Gst` and use this for playing sound: ```js let player = global.display.get_sound_player(); let file = Gio.File.new_for_path('PATH TO THE FILE'); player.play_from_file(file, 'title', null); ``` If you need any help with your extension you can ask us on: - [GNOME Extensions Matrix Channel](https://matrix.to/#/#extensions:gnome.org) - IRC Bridge: irc://irc.gimpnet.org/shell-extensions