RetroBookStore is a neighbourhood lending library reimagined: pick a book by how you want to feel, take a blind date with a mystery read, join a waitlist that saves your copy, and get your year in books wrapped up in December. Version 3 is a full rebuild in Django 5.2 (MVT) on Neon Postgres, with real circulation rules, full-text search, recommendations, gamification and a warm retro design. One-click demo logins let visitors explore as a Reader or a Librarian.