Well of the major options out there that’s not github you’re looking at gitlab, forgejo/codeberg, or sourcehut. Sourcehut is the most minimalistic UI so you may love it or hate it. Otherwise i personally would value open source over UI which is why i use codeberg.

This is what I use, and then in my waybar I have a volume control that lets me right click to switch between speakers and headphones as my output device, middle click to mute current output device, and use scroll wheel to increase/decrease audio of selected output.