I have one, but use it at my office as my main pc. I threw an nvme in it, and I throw it in the safe when I leave. There's literally no client information on any other cpu in my office, so if someone breaks in. 🤷♂️

I've never tried emulating on it.

I have a dell optiplex micro in my living room connected to my TV. It runs arch with plasma. Kodi and retroarch run great. The actual roms / media files are in a box upstairs. It's an old dell tower. I threw 4x8TB HDDs in it. It also runs local irc, mumble, mpd, and kabanboard servers.

I use moca adapters for my network, so I can use the existing coax in the walls.