It looks promising for future use, but I would avoid it for now.

Perhaps for some who have testing purposes it might be useful.

Reading on github https://github.com/getumbrel/umbrel/blob/master/SECURITY.md, I realize that there are many security holes that average users don't even realize, let alone how many risks they are exposed to.

Traditional methods of cryptocurrency trade and private key storage remain reliable.

Tails OS is a great solution that provides anonymity. Otherwise for more advanced software users, virtual machines over ssh in an OpenBSD cli environment remains 100% secure.

What looks easy to use is not necessarily safe. They should add the following.

"Use at your own risk"