Took Nostr course from SFL! nostr:npub1j8y6tcdfw3q3f3h794s6un0gyc5742s0k5h5s2yqj0r70cpklqeqjavrvg nostr:npub1afxpgt6eurnt83ju44dt4sg3svvjtzu6pv86gktl3ldgavnsxh5sdm84ej