I'm not actively working on this extension anymore since I personally switched to PipeWire, however if there are people using it I'll try to keep it updated for new gnome-shell versions and will accept bugfix PRs!
gsjackctl is a simple GNOME extension to control the JACK audio system. It works only with jack2 using jackdbus.
Dev install:
git clone https://github.com/cbix/gsjackctl ~/.local/share/gnome-shell/extensions/[email protected]
Or get the latest release by downloading the [email protected] asset from the latest release.