BEP-19 is one of the two ways of doing "webseeds", the other one is BEP-17. BEP-19 has pretty much won out because you can use it with an unmodified HTTP serve

BEP-19 is one of the two ways of doing "webseeds", the other one is BEP-17. BEP-19 has pretty much won out because you can use it with an unmodified HTTP server, while BEP-17 was an intricate scheme that required a custom server-side implementation, so you couldn't just point it at an arbitrary URL. For DHT, I know about https://github.com/the8472/mldht https://github.com/the8472/mldht, and also https://github.com/JoshuaKissoon/Kademlia https://github.com/JoshuaKissoon/Kademlia But I haven't looked into either of them in detail, tbh.