I paid for my burger last night using nostr:nprofile1qqsrf5h4ya83jk8u6t9jgc76h6kalz3plp9vusjpm2ygqgalqhxgp9gpr3mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmqpz4mhxue69uhhyetvv9ujumt0wd68ytnsw43qzxrhwden5te0wfjkccte9eekummjwsh8xmmrd9skc34yxrm and a custodial wallet. It said it was custodial right at the top of the UI.

I am the custodian.

Payment worked on the first try. Much better experience than last month when I tried 4 times and finally ended up successfully paying with coinos via their web interface.