How do we manage to achieve what Matt corallo is promoting, what bitbox calls "anti klepto".
Discussion
This is possible but would require a second round trip of QR codes to check the signatures. There are no wallet coordinators that support this, so there would need to be at least one before it would make any sense to consider implementing. You can view a video here that demonstrates how to verify your signer produces signatures consistent with Sparrow and bitcoin core:
