This sounds awesome but reading the comments it sounds not quite there yet?

Right now I use an AppleTV with Kodi installed via developer account. Unfortunately, Kodi on AppleTV is not well supported so it crashes a ton. I'm not much of an Apple dev. After much gnashing of teeth I managed to get a from source build running so I could maybe look into why it crashes and contribute but I've never debugged an AppleTV app and even trying to switch to using the simulator which I suspect is better for debugging, I couldn't figure it out.

But, quite often I just wish to get some other small box for Kodi. Except I don't want 2 boxes, one for Kodi and one for other proprietary apps (Crunchyroll, Twitch, Netflix, ...)

Any suggestions?

If you have an Android box, you can set Kodi as the launcher (so the home button will always take you to Kodi home). It has a section that lists Android apps and lets you run them from there.

It's a bit backwards but I did it for years, and it works really well if you're ok with the Kodi experience.

Depends what you use Kodi for. If it’s for accessing media files on a network drive, Infuse is the “gold standard” media player for the AppleTV.

It’s not free, though. But it’s far more stable and nicer to use than Kodi ever was in my experience. I ran Kodi for my home theatre for years but switched to AppleTV+Infuse and never looked back.

For free (and open source!) options you can use the Swiftfin tvOS app and a Jellyfin media server.

I’ve just moved from Kodi on a Linux box to Jellyfin and Infuse on an Apple TV, so far fantastic experience

Claude ?