BigFish on Nostr: I use this pre-built image of the nostr-rs-relay and followed the instructions. I use ...

I use this pre-built image of the nostr-rs-relay and followed the instructions. https://hub.docker.com/r/scsibug/nostr-rs-relay

I use Portainer as Docker Manager (linux,), which makes it easier to set up an administer docker container than purely via terminal. Portainer is free for personal use and has a easy installation too (this one via terminal).

Docker needs to be installed first (obviously). The instructions are on docker website. Just search for "install docker on ubuntu" as an example.

Docker is a virtualisation agent, so you won't install stuff on the host and cant screw it up 😊