Yes, nowadays it's easy, moreover, to set up the Zaps - the @Minibits Cashu/LN wallet is awesome. (Just how this communicate the Zap, I think: a nostr client <-> a relay <-> Minibits server <-> FCM notif. <-> the device <-> Mint & Relay.) But Zaps are the thingy in Nostr I start not liking much, it's like the space put way too energy into this zaping and it became sort of factor I don't enjoy - everyone could see the flow, not private. Also it's kinda social pressure on top of the likes/boost/repost, the dopamine stuff I run away from the legacy smooth experience on socnets. On top of of this learned (from my journey with selfhosted infra) it's moreover depending on the DNS and rented VPS (for reasons) thus by design not mine much. It's hard to do it right and keep it up 24/7/365 with some usability. Not to mention the cost of purchase and operation. And the privacy again, hard to achieve. Maybe this is now with BOLT 12 easier. I'm still hoping for a native Cashu wallet NIP 60/61 in Nostr. This and many others could be part of previous response. Nostr is (too?) many things.