idk, but we have Rusty Russell here, the CLN/Linux kernel dev @npub179e9...lz4s that probably is a decent start there is also @bumi and @Alby who are building lightning hosting tooling and web browser signers and wallets bitcoiners especially the kind that have been lodged on twitter for a decade are hyper-skeptical towards nostr but hey, gavin andreesen wasn't exactly helpful a while back either oh yeah i think Adam Back is here somewhere too, not sure oh and @jack mallers is here, he posts semi-regularly, technically more of an entrepreneur but he did build Zap wallet if you are into snake oil like ecash, there's @calle