We had this discussion as well and I agree unified QRs are the desired UX. Some thoughts/questions…

1. It’s currently challenging with Boltz swaps as onchain/lightning swaps accept different min sat values. This should be possible with a Spark/LDK backend, correct?

2. Do we know why Muun hasn’t made unified QR codes the default option (it’s been an option for several years now I believe)? I got an error message when I pasted the unified QR from Muun (it includes a zero amount bolt11 invoice which isn’t supported everywhere). Those issues need to be sorted out before unified QR codes can work with a seemless UX.

3. How does Cash App format the unified QR code? (can’t test since it’s US only)