Crazy that it hasn't been being developed since Feb 2021. Just checked their Github, because everything just feels so polished. I haven't used it to send or receive any transactions but I see no reason for that not to work. Looks like it uses Segwit addresses.

They also have a service that could easily be dockerized and run inside of Umbrel to make it more private. Just feels like it was before its time, we needed the bear market to take the blinders off.