As a follow-up, I do think Jade's biggest problem is squeezing enough stability and functionality out of the cheapskate M5 hardware, and it comes up frustratingly short at times. Bluetooth pairing with the app can be *really* flakey.

Additionally, if you don't like the security model, you can always just put it in a mode where it acts like a SeedSigner -- you enter in seed information, sign your stuff, and the device forgets the info after it is shut down. It works *okay*, and the biggest pain point is the small screen to relay the QR code back to Sparrow or Nunchuck or whatever. Also, if your laptop webcam is potato, you might have to shut the Jade down, boot it back up, and adjust the brightness before re-entering your seed again.

The Jade sells sometimes for like $45 on sale, and that feels like the right price point, considering building a seedsigner is around that cost. When raspberry pi zero's were in supply chain crisis, Jade made a lot more sense.