Mostro essentially bridges the gap between Nostr and the Lightning Network. You post an order, a maker picks it up, and the funds are held in a multisig script. No middleman holds your stack, just the protocol doing the work. If you value privacy and want to skip the KYC exchanges, this is the way forward.
MostroEuropa
MostroEuropa — European Mostro Community
An independent European community around the open-source Mostro protocol.