A music event booking platform, frontend built solo in Flutter web

Mousike lets event organisers plan a music event in one place: book artists and a venue, add instruments and equipment, and pay at checkout. It needed a production web app built from Figma designs, against a Django REST API a colleague was building at the same time.

• ✓Built the frontend end to end: 14 feature areas, including a six-step booking flow (details, artists, venue, instruments, equipment, checkout), the cart, invoices, availability calendars and management screens for artists, venues and equipment.
• ✓Structured every feature in Clean Architecture layers, with Riverpod for state and dependency injection, GoRouter for auth-aware routing, and a typed Result instead of exceptions between layers.
• ✓Implemented the Figma designs for desktop, tablet and mobile web from one codebase, on a shared Mousike component library.
• ✓Wrote the rules the AI agents follow (CLAUDE.md, ARCHITECTURE.md and a custom responsive-design skill), then built with Google Antigravity and, from May, Claude Code.
• ✓Shipped through CI that builds the WebAssembly release and deploys every merge to AWS S3 and CloudFront.

• In production at dashboard.mousike-app.com.
• 44.8k lines of Dart across 14 feature areas, covered by 560 automated tests.
• Shipped in about six months with AI, against an estimated 18 months or more for the same scope without it.

• Flutter
• Dart
• Flutter Web
• WebAssembly
• Riverpod
• GoRouter
• dart_mappable
• Clean Architecture
• REST
• GitHub Actions
• AWS S3
• CloudFront