https://m.primal.net/JWgs.png 

woo, on-chain zaps and antizaps working on testnet.

https://mempool.space/testnet4/tx/6d8d2c26fb6f68097c7bbca6843d3ef475368d6211c837632446bc4a0f3f162a

Draft NIP 570

https://gist.github.com/melvincarvalho/15f767fee8ed3e14197b322235e9fe8d