Mostly advisory. We are trying to onboard them into Nostr.
Discussion
Can they be paid in bitcoin and use nostr:npub1m7r9aayrqjtt2q0whkyrwlys75s5d828c5uewvqwyfd2kxefkfjqgeny2w
We could try Bitrefill, but I would love to get something reliable for them.
BTC Payment is easy. The issue is that cellphone batteries don't last very long to have a bitcoin wallet ready when buying things. So they prefer something tangible that doesn't rely on a charged phone.