For me it is writting docker compose files describing my services. I like to test them on my machine before pushing them to the server(s). But I guess that’s my own fault for not using something like portainer or even SSHFS.
What’s the most annoying / painful step for you?
Breaking your internet connection and not being able to google how to fix it
No mobile data?
That’s why I still keep my old router around. If my OPNsense router breaks beyond my repair, I can just plug in the old one and have internet running in 5 minutes.