Track catalog

Each track ends with mentor-signed artifacts. Open any brief for prerequisites, rubric weighting, and refund cross-links.

Widget Lab: Composition for Real Screens

Build scroll-safe layouts, inherited themes, and accessibility hooks before shipping a production navigation shell.

¥98,000

Model futures, isolates, and stream transformers with tracing exercises drawn from telemetry-heavy apps.

¥72,000

Refactor a multi-module codebase using providers, overrides, and test harnesses that mirror CI checks.

¥105,000

Ship a minimal plugin, negotiate binary messages, and harden error surfaces for Android and iOS builds.

¥118,000

Capture rendering regressions, manage baselines per device class, and wire uploads to your artifact store.

¥64,000

Tune curves, implicit animations, and haptics so gestures feel anchored to material behavior.

¥88,000

Generate serializers, handle pagination edges, and keep widgets ignorant of wire formats.

¥92,000

Design drift-tolerant queues, conflict resolution, and background tasks for intermittent connectivity.

¥112,000

Bundle splitting, signing, phased rollout, and crash triage playbooks aligned with Japanese storefront rules of thumb.

¥76,000

Walk through semantic trees, contrast budgets, and TalkBack/VoiceOver scripts with mentor-reviewed rubrics.

¥58,000