agents-inc

Stripe payment processing — Checkout Sessions, Payment Intents, subscriptions, webhooks, Connect, customer management, error handling

Reactive programming with RxJS - Observables, operators, Subjects, error handling, and memory leak prevention

Tauri 2.x commands, IPC bridge, permission system, plugins, window management, system tray, packaging

Unstyled accessible UI primitives

Vue Test Utils patterns - mount, shallowMount, wrapper API, trigger, setValue, flushPromises, testing composables, Pinia store mocking

Next.js App Router patterns (15-16) - file-based routing, Server/Client Components, streaming, Suspense, metadata API, parallel routes, Server Actions, mutations, revalidation, Cache Components

Error boundary patterns, fallback UI, reset/retry, react-error-boundary library, React 19 createRoot error hooks

Query optimization, caching, indexing, connection pooling, async patterns

Qwik resumable framework - zero hydration, $ lazy boundaries, signals, Qwik City file-based routing, routeLoader$, routeAction$, server$ RPC, serialization rules

Decorator-based ORM for TypeScript with Active Record and Data Mapper patterns

Atomic state management with auto-dependency tracking

Redux Toolkit patterns for complex client state. Use when managing enterprise-scale state, needing DevTools, entity normalization, or RTK Query for data fetching.