i have no idea about this device. i'm just saying that a dedicated hardware nostr signer like the kind that @semisol is busy developing, combined with a device you can interface it with that runs a nip-46 bunker and offloads signing to the device, it's a universal device, you can use it on everything because its only dependency is being able to connect out to a relay. a good design would have a reasonable 4" screen and the socket for the SE would be integrated into the case. and all it would do is connect to wifi, connect to relays, and wait for requests, and show you QR codes for the connection strings. i think the SE should be a separate dongle for reasons of security and easier storage/concealment of backups.