It’s probaly not needed at this point. You can get flash drives crazy cheap.

I guess I’m a bit confused, immich does have a few docker containers available, I’m using one for backups and it works great.

It’s more for people who look at the controller buttons while playing. I’ve had people use my controllers and get really confused when B is actually A and so on.

As someone who switches between PC using an Xbox layout and a Switch, I like the idea of swappable buttons, assuming it doesn’t cause any issues physically with the controller in the long run.

Highly recommend using Immich and just creating a separate account(s) for your friend(s). You can even set storage quotas for each individual person.