Keychat. Paying 1 sat per dm. Really interesting!
https://nostrcheck.me/media/1bc70a0148b3f316da33fe3c89f23e3e71ac4ff998027ec712b905cd24f6a411/213860e794eaef042207702b3b7da739f622d8fd913e5342501b566b09a17a60.webp