Kgothatso Ngako, I don't know his npub , but I've been told he's on Nostr. He is a young African man who invented a way to send Bitcoin without internet using mobile phone networks. Absolute genius.

nostr:npub1lu0tf0dpk6tm2g4c75xeqn93dg0pulp0rjn22s9g8q4xxqmf0glqfn2xaj

Not sure if this is what you have in mind but nostr:npub172mu27r5yny0nnmvgjqwhx055dmsesrrx7j0p5d3pxagfx6xgxfsv75p3q makes some great maple syrup!