Knossos

On my Fritzbox, I needed to add all my Subdomains to a list under:

DNS Rebind Protection Your FRITZ!Box suppresses DNS responses that refer to IP addresses in its own home network (DNS rebind protection). Here you can specify exceptions for which DNS rebind protection should not apply. Do this by entering the complete name of the host (domain name including the subdomain) in the list.

That’s under network settings, advanced. In case you have that.

Some people really do :D

You don’t.

Unless it is publicised or an obvious bug exists in your code and you see the consequences of it in their system.

I use a HDD for my immich instance. I have a feeling it might have made the initial import process quicker (complete google photos dump). However, general usage, I have found zero bottlenecks.

Sorry you lost your community. That really sucks.

On the other hand, welcome to a new community!