On an old raspberry pi 3b, a copy of a blog by one of my favorite writers (the original is long gone and was never archived, I happened to grab a copy with wget when it came back up briefly) so I can read it when I'm on my home network. And a pi hole dns adblocker.
I'm hoping to set up some kind of media system for streaming eventually, but we currently use a PS4 as our media center and it doesn't look like our options for compatibe apps are great.
I'd definitely like to get a local Mealie instance going in the next year