Case study
Grimoire Culinaire
From concept to Play Store, solo.
The problem
Design a mobile recipe app that isn't just a CRUD, but a real product: internal economy, gamification, useful AI, offline-first, Play Store publication. All as a solo developer, no team, no tech debt.
The method
Full PREDEV scoping before code: product promise, 3-layer Riverpod architecture, breakdown into 14 lots with validation criteria. Each delivered lot goes through tests + post-delivery audit. Internal economy (muffins) structured from lot 1 with reserve-before-debit and automatic rollback.
The result
Complete MVP published on Play Store. 400+ tests, 80% coverage. 14 lots shipped with zero major tech debt. 7 Supabase Edge Functions, 51 analytics events, offline-first sync. Reusable architecture for other projects.
Stack
Flutter · Dart · Riverpod · Drift · Supabase · OpenAI