I was thinking about a quick weekend project where I'd turn it into a home cinema Linux box + a basic NAS.
I'm a compulsive yak-shaver/bike shed renovator so before I risk getting stuck tinkering -- what distro/setup do you recommend? Is the process as fiddly as it used to be a decade ago?
If it’s already working you want the project, you don’t want it to go smoothly (or else you wouldn’t even be considering it) so just pick a distro at random and go nuts.
The setup wasn't fiddly at all. I had to fiddle much more with ordinary PC laptops. Any distro should be mostly fine - Ubuntu, Fedora, Arch...