@nebulon said in Immich takes a very long time to be ready on first run:
I somehow can't reproduce any such slow initial startup behavior.
Immich started working eventually. I just needed to wait. The delay might have been because I had uninistalled an instance of Immich just previously and was re-installing. Alternatively, the process might have been interrupted by my increasing the RAM allocation when it was about to start, and had to go back to square one.
Anyway, it is going now.