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Three ways to level up
A multi-device viewer, a pattern quiz, and a reference library.
Viewer
Preview any URL on phones, tablets, and desktops with synced scroll, click, and navigation.
Play
Pick the better responsive pattern in 10 side-by-side code challenges. Daily and weekly seeds included.
Learn
128 patterns across 16 categories. Each shows the fragile approach, the resilient one, and why it matters.
Can't Maintain
React component API design. Props, composition, and patterns.Development
Can't Type
TypeScript patterns. Generics, narrowing, utility types, and common mistakes.Development
Can't Orchestrate
Container orchestration patterns. Docker, Kubernetes, CI/CD, and Helm.Development
Can't SEO
SEO best practices for Next.js. Meta tags, Open Graph, structured data, and more.Development
Can't UX
UX design patterns. Typography, spacing, color, hierarchy, layout, and forms.Design
Can't Explode
Chemistry challenges. Molecular stability, acid strength, bond energy, and electronegativity.Science
Can't Branch
Git best practices. Commits, branches, merges, PRs, hooks, and repository management.Development
Can't Test
Testing patterns. Unit tests, integration tests, mocking, test strategy, and CI.Development
Can't Query
API endpoint patterns. REST, GraphQL, WebSockets, auth, and error handling.Development
Can't Game
Game development patterns. Game loops, input, physics, rendering, AI, shaders, and netcode.Development
Can't Ticket
Agile ticket craft. User stories, acceptance criteria, story points, and splitting work the team can ship.Process