I'm in the process of turning all @kosmos account user addresses into a Lightning Address with a hosted wallet/inbox for sats.
Now, that's already fantastic, because it means you can easily send sats to Kosmos XMPP contacts. But then it hit me: we can also do this for XMPP *channel* addresses, so you can easily send sats to a chat room, which could be a public channel for your project. 🤯
Obviously, my plan is to implement this in Hyperchannel, but any XMPP client could add payments this way.