Yet, to receive or send btc on nostr one has to register on some thrid-party sites like alby or walletofsatoshi and trust them to handle your btc, which completely defeats the whole motivation behind "crypto" money. And nostr people commit to this ugly scheme while there are more easily accessible, cheaper, ergonomic and robust technologies to that could fill this role. This is fascinating
To send/zap is straight forward. You can use non-custodial btc lightning wallets like breez, Phoenix, ... it'll open your wallet. If you're on a web browser instead of an app it just shows the lightning invoice. To receive zaps I've yet to find a simple non-custodial solution. You need an ln address. For it to work effectively it should be for a node on clearnet using ssl. Being behind Tor is flaky and not all clients support it. For example breez wallet on iOS doesn't have tor support So far custodial ln address like those provided by WOS, bitrefill, and others is the easiest solution I've found. I may have missed something in my research of this but I don't think so.