Evaluate React Native UI libraries by accessibility, New Architecture support, theming, maintenance, bundle impact, and escape hatches. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Use portfolio projects to demonstrate production skills such as offline data, authentication, push notifications, native APIs, testing, and release automation. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Improve app-store discovery with accurate positioning, strong screenshots, localized metadata, reliable ratings prompts, and product retention that supports ranking. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Debug React Native systematically by isolating JavaScript, Metro, native build, dependency, device, network, and release-only failures. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Use React Testing Library to verify accessible user behavior and state transitions without coupling tests to component internals. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Use React hooks to model state, derived values, external synchronization, transitions, and reusable behavior without effect-driven data flow. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Use Angular dependency injection to define boundaries, configure environments, scope state, replace implementations, and keep tests isolated. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Integrate Firebase Authentication into Angular with modular APIs, route protection, token-aware backend authorization, and secure session handling. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Design Angular routing with lazy features, typed parameters, resolvers only where useful, guards for UX, and explicit SSR behavior. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Use Angular Material as an accessible component foundation while keeping product tokens, layout, content hierarchy, and custom interaction design under your control. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Test Angular components and services around public behavior, dependency boundaries, signals or observable state, and asynchronous failure paths. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.

Use Kotlin null safety as an API-design tool through non-null defaults, safe parsing, explicit absence, platform-type boundaries, and sealed outcomes. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.