I have a keyboard and mouse in the office and keyboard and mouse at home, all paired to the same dongle permanently plugged into my laptop. I find it pretty helpful and useful.

It’s spelled twatter

Elmo’s mom won’t allow it

Selfhosting an *arr stack with Plex/Jellyfin is the way.
There’s also Tdarr for automatic transcoding of videos right after they get downloaded, haven’t tried it yet so can’t comment.