yoda.fun

Backend entity patterns - services with DI, Drizzle schemas (3-file pattern), ORPC routers, TypeIDs, neverthrow. Use when creating services, schemas, routers, or new entities.

React/Next.js data patterns - React Query hooks, ORPC client integration, error handling, cache invalidation. Complements frontend-design skill (visuals).

Test infrastructure patterns - PGlite for in-memory PostgreSQL, Redis/S3 mocks, TestSetup factory, Vitest. Use when writing tests or adding test infrastructure.