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Type-safe client-side routing for React with file-based routes, search params validation, loaders, and code splitting
Web Scraping: the legal and regulatory landscape (CFAA and the hiQ/Bright Data line, contract and ToS exposure, the DMCA Β§1201 shift, copyright and TDM, GDPR and the EDPB's 2026 scraping guidelines, the EU AI Act), when not to scrape and what to do instead, robots.txt and the emerging crawl-permission layer, how the modern web actually serves data, the tool ladder (requests, curl_cffi, Scrapy, Playwright, managed services), parsing and extraction, bot detection, scale and reliability engineering, data quality, storage and pipelines, operational ethics, scraping for AI and RAG, and building a site that handles crawlers well.
Web scripting with PHP and Ruby for web applications, CMS development, and backend services
Web scripting with PHP and Ruby for web applications, CMS development, and backend services
React Query server state, hey-api OpenAPI codegen, type-safe data fetching
Composable agentic UI testing, dashboard validation, and browser automation suite
MobX observable state management patterns with mobx-react-lite. Use when implementing reactive client state with observables, computed values, actions, and the observer HOC.
NgRx SignalStore patterns for Angular state management. Use when managing client state with Angular Signals, composing store features, handling entities, or integrating RxJS effects.
Pinia stores, Vue 3 state patterns. Use when managing client state in Vue applications, choosing between Options/Setup stores, composing stores, or implementing persistence.
Redux Toolkit patterns for complex client state. Use when managing enterprise-scale state, needing DevTools, entity normalization, or RTK Query for data fetching.
Zustand stores, client state patterns. Use when deciding between Zustand vs useState, managing global state, or avoiding Context misuse.
Class Variance Authority - type-safe component variant styling with cva(), compound variants, and VariantProps
Tailwind CSS v4 - utility-first CSS framework with CSS-first configuration
Live web-app verification β drive real browser flows via Playwright MCP, assert console and network health
Live web-app verification β drive real browser flows via Playwright MCP, assert console and network health
Cypress E2E testing patterns - test structure, data-cy selectors, cy.intercept() mocking, custom commands, fixtures, component testing, accessibility testing with cypress-axe, and CI/CD integration
Playwright E2E testing patterns - test structure, Page Object Model, locator strategies, assertions, network mocking, visual regression, parallel execution, fixtures, and configuration
React Testing Library patterns - query hierarchy, userEvent, async utilities, renderHook, custom render with providers, accessibility-first testing
Vitest test runner - configuration, assertions, mocking (vi.fn, vi.mock, vi.spyOn), fake timers, snapshot testing, coverage, workspace projects
Vue Test Utils patterns - mount, shallowMount, wrapper API, trigger, setValue, flushPromises, testing composables, Pinia store mocking
Storybook patterns - CSF 3.0, args, controls, autodocs, play functions, interaction testing, visual testing, addons configuration
Vite config, path aliases, vendor chunk splitting, environment-specific builds, Rolldown codeSplitting, Sass modern API, build targets, module preload