This guy has a guide for Rpi5, debian, some disk config, docker, nginx,-proxy-manager, immich. Backup/restore… If you like hands on stuff, this is ok I think…
edit, forgot the actual link: https://github.com/TorATB/RPI-Immich/blob/main/Immich on Raspberry PI5 Guide.md
Sounds nice, but now I have set up and tested immich… It’s good to have digiKam back tough. 👍