Mobile App Factory
Reusable Flutter platform for shipping multiple apps from shared packages — architecture enforced by tooling, with EIKEN Kids Quest as the first product.
Overview
Mobile App Factory is a Dart workspace where multiple products share every package without importing each other. Headless learning, mastery, curriculum and reward engines sit under a Flutter shell, with optional Flame games. A custom factory CLI validates products, content and architecture — 57 files checked against 9 rules — and a single verify script gates every release.
The challenge
Shared platforms drift: abstractions grow that make products harder rather than easier, unused APIs linger, and translations silently fall back to the wrong language. The factory needed mechanical enforcement, not documentation promises.
Our solution
Product manifests in YAML with compile-time module selection, a check-architecture rule set that fails the build on cross-product imports, strict translation resolution that surfaces missing strings, and an architecture decision record for every significant choice — including why a seeded RNG was replaced with an explicit xorshift32 implementation.
Key features
Results & impact
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Mobile App Factory