There’s a decent chance your public IP, even though not technically static, doesn’t change all that often. Depends on your ISP, but I’ve only had my public IP change unexpectedly once over ~5 years of self-hosting and that was after a 24-hour power outage.

Yes! With a few plugins, of course. YouCompleteMe and fzf.vim are my favorites by far. I spend a lot of time on embedded Linux devices at work, so it’s pretty convenient to use the same editor on my laptop and on the target device.

Specifically if you use GrapheneOS. Pretty easy to install, I’ve been on it for a couple months now and it’s great.