My menu bar gets awfully cluttered with items I both want and don't want. So, I use a menu bar manager to hide those items I don't care to see all the time. SwiftBar is one of those menu bar utilities that offers to let you customize what information is displayed there. That there is no documentation suggests this is still an Alpha release. Still, once launched, it has a "Get Plugins..." menu that shows a list of available options. These are simply (Linux/Unix) shell scripts that get placed into a modules folder you can create. If you can write a shell script, you can create your own. There does appear to be some directives needed to invoke the script, and some items may not run under zsh (the now-default shell under macOS).