nostr:npub17vr5pg9dm2fk6nu7vlmk9kq4s83rcl6ncqv2tf0pdeed98ydm6nqf45usr nostr:npub1lrcpgzqkllaapkdsm3czjyqxvh00nuqtx3m5f9pe8saqxeme8q0stj8c9v You could also look at nostr:npub1f6mssnwyfwzv4xa96zd3mj7cmj43rm2ckaqqnlj07z2seu87jjcsxd9g3s Practical Swift Concurrency from nostr:npub1f6mssnwyfwzv4xa96zd3mj7cmj43rm2ckaqqnlj07z2seu87jjcsxd9g3s is a good one also...