"Easy mode" DIY node test: Ubuntu Desktop + Umbrel
tldr: "Easy mode" is easy until usual tech shit gets in the way.
Everything went way better than the Ubuntu server route, but then...
Docker's fault. Their server is down.
But the Umbrel installer can't gracefully retry and resume. Have to know to wipe the `umbrel/` directory first. But no point in trying until that Docker server is back up.