I now have a pixel with grapheneOS but unfortunately it is the same problem with the location in some apps.

I will use that for documenting further stuff. If Zabbix works a few screenshots from there should explain a lot but everything else I would add to the wiki.

This looks great! I will try Zabbix first! More than I expected. Thank you

That sounds to complicate for me. I am still a beginner.

Hmmm, I have a few dockers, but most stuff is running in lxc‘s (Proxmox). Btw: I tried Heimdall (or Homar?) but I had to enter all services by hand. Is there a way or an app to automate that?

Was in the same Situation. Tried calyxos and lineage os with microg but there were always issues. I wanted a phone that works, so I bought an iPhone. I know that is not at all the best way to have privacy, but it works. I try to use as much open source and selfhosting as possible to minimize the data Apple gets. https://github.com/dkhamsing/open-source-ios-apps