Jack Dorsey, has endorsed and financially supported the development of Nostr by donating approximately $250,000 worth of Bitcoin to the developers of the project in 2023,[13][15] as well as a $10 million cash donation to a Nostr development collective in 2025.
He also had a lot to do with Nostr, early on.
What?
Oops I mistread my source. Have updated my comment.