The book was written by 8 authors during a book sprint:
Timi Ajiboye
Luis Buenaventura
nostr:npub1trr5r2nrpsk6xkjk5a7p6pfcryyt6yzsflwjmz6r7uj7lfkjxxtq78hdpu
Lily Liu
Alexander Lloyd
Alejandro Machado
nostr:npub10vlhsqm4qar0g42p8g3plqyktmktd8hnprew45w638xzezgja95qapsp42
Alena Vranova
Looks like at least 2 are on Nostr!