Cashu is cool, and I use it. Alhough some Mint runners are currently charging quite a premium and we should call them out as much we call out the lighting payment services salespeople on Nostr. Given that it's "newer" tech I think it's impressive for sure. I honestly have less issues with it than with Lightning nodes going offline, channels closing, etc. So I think that tech like Cashu or Spark may be a better alternative for folks zapping a few hundred or thousand sats a month on Nostr. Unfortunately I don't think that any tech will end the "custodial" debate though. No matter how efficiently the underlying tech mitigates risks, there always be trade-offs. Lets see how all of this evolve.