Oddbean new post about login | logout yeah, that's the problem, i don't think it's advanced enough to do that. It doesn't actually show the seed. I need to dig into it more...
If it produces an XPUB and a master key fingerprint (XFP), that’s a good start. But yeah, its firmware would also need to be capable of signing multisig transactions. I’m almost curious enough to buy one. Almost.