Everywhen — a daily journey through geography and history

Everywhen — a daily journey through geography and history I designed and shipped a daily game around guessing a real place and its year, reading the story, and collecting the place in a personal Passport atlas. The interface connects a short daily round to a growing record of discovery. I built the native SwiftUI product and its SwiftData/Supabase/Postgres sync. Local play stays independent of network availability; idempotent writes and append-only attempts preserve activity when devices reconnect. Full case study: https://www.timothyyang.dev/design/everywhen