Setup #headscale for fun today (it is an open source reimplementation of the #Tailscale Servers) was quite easy, just that at some point the docs stated to use FQDN but it was not just the domain name required but also https:// and the port it seems. Still got it working, was just mildly annoying.
Running natively on #Debian was so easy to set up otherwise. Will set up some sort of UI later on maybe even with #SSO via my #Keycloak.