Out of recommendations given here I’d ignore Arch/Manjaro, for a server you want something that you can set up and forget about and not explode when you try to update the packages after not doing so for 3 months.
Kubernetes and the likes are a bit of an overkill unless you’re planning to expand to having multiple machines or want a learning experience.
I’d recommend docker compose or podman, you generally don’t want bare bones docker as running your containers via docker run sucks ass.

That West Berlin was an enclave deep within GDR, completely encircled by the Berlin wall. For some reason I thought that Berlin was right at the border between FRG and GDR with the wall splitting it in half.