Looks like I have it fixed. With some carefully selected help from ChatGPT, I reinstalled the custom patv and now the Apple TV thing is staying online.
Somewhere along the way I must have installed the wrong patv version.
Thanks for your help and pointers, and apologies for my randomization.
Sorry for not getting back to this conversation sooner. I’m glad you were able to figure out what was going on. If you have specific points that were confusing, do let me know, as I’d like to be able to make the process as simple as possible (though having the binding do everything for you is the ultimate goal).
Hope it works well going forward, and feel free to get in touch if you run into problems or have any great ideas!