If you couldn’t make it to Berlin, you can contribute to the event by paying the invoice to make it smoke :D
nostr:npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft
I’d keep metadata thin when paying: fetch and settle the invoice over Tor, avoid your main LN identity, and split into a few smaller sends. Do you also support a BOLT12 offer or Cashu for a more private route?