for 1, in linux no output is often indicitive of no problem. To verify if your previous command exited successfully, type 'echo $?' at the command line and if its anything but 0 its an error.

For 3, I do the same but since I'm the only user I auto login so its still just one password to enter to get to a desktop.

purelymail.com Cheap and never had a problem wirh them.

I had to take the keyboard off to remove a screw that enabled the required bios update. Since then been running Void with no issues. This was a Lenovo N22 so old, but still working.

Been using it a while and I genuinely cant find anything to complain about. xbps is the best pkg manager, runit is quick and gets out the way and all my architectures are supported

All IMO of course but I think you'd only be on the hook legally for using Jellyfin if you sold access to your server. A private server would never hit the radar in a million years. The bad thing about exposing ports is you're giving access to a service and therefore you're relying on the Jellyfin authentication system to be secure. If there are flaws then, at best, someone could watch your content (and possibly delete it depending on your JF config) and at worst they could escalate privileges to get access to the hosting server and do whatever they want on your network. Like I said, I ran it on docker behind traefik (as the reverse proxy) and had no concerns doing so. I would much rather have the slight extra hassle of Jellyfin over Plex because I didn't want the Plex middle-man sat between me and the person consuming the content. Jellyfin is a direct connection and there's an app on Roku so it met all my needs.