One thing that I got a little stumped on was when I needed to claim the sats. Some wallets don't allow you to paste in an invoice. They make you generate one. So that might be something to look into more.
I'm not sure what you mean that some wallets don't allow you to paste in an invoice. You should be fine just by scanning the QR codes (both when paying and claiming).
I just gave it a test.
I like it!
One thing that I got a little stumped on was when I needed to claim the sats. Some wallets don't allow you to paste in an invoice. They make you generate one. So that might be something to look into more.