A lot of good information here so I’ll add something a little different:

Do Not open any services to the internet, such as for remote access, until you are sure about what you are doing. Doing something like opening a port so you can watch Jellyfin anywhere sounds great, but doing it wrong pokes a huge security hole in your infrastructure.

Keep everything in your local network until you have a secure remote access setup. Even your home network may be untrustworthy if you’ve got things like IoT devices or compromised operating systems.

I think those reqs are assuming full computer vision features. I must’ve disabled them because my entire docker LXC is using less than 4GB, of which Immich is only one of the containers its running.

What’s your hesitation with Immich? Try it out and with a small subset of your collection and see how you enjoy it before moving everything.