Or, they could use Caddy reverse proxy, and all of that would be automatic.
Discussion
Yes. There are ways to do it if they wanted.
Use caddy on my server for reverse proxying and automatic ssl.
I suppose whoever has the knowhow to run a rely on own derver does not need umbrel. Everyone else uses umbrel as home server.
That is probably true. Target users are different. I could see myself buying one of these things and immediately take the OS off it. LOL
Or just buy a raspberry or orangepi 5 (runs ubuntu linux) and do your server on it.
Btw: umbrel software also runs on orangepi 5. Got one running myself.