jikan-log

Guide for writing Expo native modules and views using the Expo Modules API (Swift, Kotlin, TypeScript). Covers module definition DSL, native views, shared objects, config plugins, lifecycle hooks, autolinking, and type system. Use when building or modifying native modules for Expo.

Set up Tailwind CSS v4 in Expo with react-native-css and NativeWind v5 for universal styling

Load this skill for any up-fetch task: `up(fetch, getDefaultOptions?)`, `upfetch(url, options?)`. Covers dynamic defaults, auth, request shaping, validation, error handling, lifecycle timing, and runtime caveats.

Use Expo DOM components to run web code in a webview on native and as-is on web. Migrate web code to native incrementally.

Migrate codebase from try/catch or Promise-based error handling to better-result. Use when adopting Result types, converting thrown exceptions to typed errors, or refactoring existing error handling to railway-oriented programming.

Use when building Elysia web applications or when the user asks about Elysia APIs, routing, MVC/folder structure, lifecycle hooks, validation/models, plugins, Eden, WebSockets, streaming, or best practices. TRIGGER when code imports from 'elysia' or '@elysiajs/*', or the user mentions Elysia. Prefer `elysia docs essential/best-practice` and `elysia search` (from @sc30gsw/elysiajs-cli) for authoritative patterns; use `elysia req` to hit routes without an HTTP server (via `app.handle()`).