While everyone is focused on the OP_RETURN discussion, nostr:nprofile1qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcpzemhxue69uhks6tnwshxummnw3ezumrpdejz7qpq2rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sugh36r and other Cashu developers are pushing code to improve the UX of ecash.
Multinut payments are here and they are a forcing function for risk distribution and competition among mints.
https://www.tftc.io/multinut-ecash-payments/