This might be a time when an ignorant point of view helps, like mine. I don’t know anything about Wayland- Is it like Zululand but where the Way tribe lives? Anyway, my naive assumption is OP was wondering if you can run it on a server that does not have a display plugged in.

I hate how fragmented they are. I’ve given up on various guides out there for ‘setting up the arr stack’ because of getting bogged down in since miniature detail that, IMHO, shouldn’t even be a thing. I get that hosting seperate services has advantages. But the disadvantage of giving up on the whole thing because you have to sort out networking and file permission issues between the service that downloads video files over an hour long and the service that downloads video files under an hour outweighs those advantages.