At this point, I’ll just assume you are trolling and stop replying after this comment.
This post is trying to provide a generic solution to the fact that there are no reasonable way to get map tiles without relying on a third party provider.
I additionally included instructions on how to set it up with Immich, but I don’t see how a caching proxy in front of OSM should be part of Immich, a software focused on managing photo libraries.