I feel that same, I stopped using mint for that reason but I haven’t found a self hosted replacement yet.

Check out: https://docs.podman.io/en/latest/markdown/podman-systemd.unit.5.html

Such a thing exists? I haven’t been able to find something that will connect to my accounts and pull data automatically.

I think the ISO specifically wasn’t reproducible but now it is.

Nix packages are probably what you’re thinking of. They are reproducible

Check out sonarr and radarr

They allow you to automate downloading stuff.