1. Soup version already selected in GNOME Shell code. So, line 5 `extension.js` won't change it. The best approach will be removing 42 from the supported shell versions and only use Soup 3: [Port Guide 43: Soup 3](https://gjs.guide/extensions/upgrading/gnome-shell-43.html#soup3) or, if you don't want to do that, create a helper function with version check and on 42 use the old API. 2. No need to use any parameters since you already specified that in `metadata.json`: - line 21 `extension.js` - line 7 `prefs.js` 3. Timeout should be removed on destroy (line 75 `extension.js`): [EGO Review Guidelines: Timeout](https://gjs.guide/extensions/review-guidelines/review-guidelines.html#remove-main-loop-sources) 4. You should call `abort()` on disable or destroy (line 65 `extension.js`): [`Soup.Session.abort()`](https://gjs-docs.gnome.org/soup30~3.0/soup.session#method-abort) 5. Unsubscribe on destroy (line 279 `extension.js`).