What do you use as a Media player (hardware)?

[SubsBware]

I was thinking something about that size, but was more curious about the OS setup on it. Is there a 'standalone' OS just to run Jellyfin, or will a more general Mediacenter OS have a Jellyfin plug-in/applet?

If you really want that, you install Kodi

Doesn't look like Kodi is an OS itself. I was looking for a standalone OS meant to be a media device so i didnt need to run a program "on top of" an OS. Seems like a waste.

[TheDreadPirate]

AFAIK, this is not a thing. LibreELEC is the closest you'll get, but it still relies on, usually, Kodi to be the media playback application. An OS is an OS. An OS cannot play videos. It provides the means for an application to play videos.