Disclaimer: Running Umbrel since a year and I think personal servers on the cusp of a revolution.

Pretty much like how google, mail and social networking websites served as the gateway drug for client server apps and cloud server, Bitcoin/Lightning/Ethereum are increasingly looking like the gateway drug for home server apps and home servers itself. And Umbrel has completely convinced me of this.

This seems a really neat idea. Can you please tell more about the stack that you would be focussing and the reasons behind that choice?