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React core maintainer and frontend systems architect exploring proof assistants, AI agents, and decentralized social protocols.

React core and frontend architectureDecentralized social protocols and clientsLean theorem proving and formal verificationAI agent tooling and Claude skillsReact Server Components and streamingDeveloper tooling and hot reloading

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dan

Top 11%
@gaearon

Dan makes explanatory projects that cut through the noise: react-makes-you-sad is a humorous flowchart for debugging React problems, while whatthefuck.is provides sharp, opinionated definitions for front-end developers. With 47k stars across his work, he's in the top 11% of GitHub contributors globally.

React. I made a library that simplifies building interactive websites.

247k

React Native. I made a framework for building mobile apps with React.

126k

React Docs. I built the official React documentation website.

12k

Overreacted. I wrote a blog sharing what I've learned building JavaScript tools.

7.3k

React DnD. I built drag and drop for React.

22k

Spacegray. I made a minimal UI theme for Sublime Text in five color flavors.

7.2k

Redux Thunk. I built middleware that lets Redux apps handle complex data logic.

18k

RSC Explorer. I made a tool for learning how React Server Components work by running them in your browser.

1.1k

React RFCs. I built a system for proposing and discussing major React changes.

5.8k

React Hot Loader. I built a tool that reloads React components in real time.

12k

Woodshed. I made a tool to test and refine Claude instructions through repeated runs.

69

React Side Effect. I built a tool that maps React component changes to global side effects.

1.2k

Next Bug Repro. I made a Next.js starter project for reproducing bugs.

5

Gaearon. I made my personal website.

3

Suspense Experimental GitHub Demo. I built a demo showing how to load data while pages render.

796

React Blessed Hot Motion. I built a terminal app that uses React with live code editing.

278

What The Fuck Is. I wrote a glossary of computer science terms for website builders.

3k

React Drag and Drop. I made a working example of drag and drop in a web page.

4

Redux Router. I built Redux bindings that keep your router state inside Redux.

2.3k

React Transform Boilerplate. I built a Webpack starter template with hot reloading for React.

3.3k

React Stateful. I built a higher-order component that lifts state out of React.

85

Error Catch. I built a tool that catches errors inside React components and shows a custom message.

184

Testcomp. I made a tool for testing how code components work together.

9

Next CC Activity Problem. I built a notes app to reproduce a caching bug.

3

RN Bug Loop. I made a template for creating React Native bug reports.

5

React useDeferredValue Bug Repro. I built a reproduction case for a React production bug.

4

Hooks Perf Issues. I built a demo showing where React hooks can cause performance problems.

14

Promise Loader. I built a webpack loader that splits code into chunks you load on demand.

214

Reanimated Repro. I made a template for reporting React Native bugs clearly.

7

Ulonka. I made a website template ready to run on your machine.

1

TicTacToe. I built a tic-tac-toe engine with clean separation between game and display.

8

React Pure Render. I built a faster way for React to skip unnecessary component redraws.

447

React Webpack. I made a starter template for building websites with React.

2

Draft. I made a tool for building text editors with formatting.

3

React for Beginners. I made a guide teaching people to build interactive websites from scratch.

20

Jest Mock Issue Repro. I made a minimal reproduction of a Jest mocking issue.

2

Jest Babel Issue. I documented a Jest and Babel configuration problem with React tests.

2

Asset Hasher. I built a tool that renames website files with hashes for long-term caching.

1

Playtronica. I made a tool for building and playing music with blocks.

7

React Transform HMR. I built a tool that hot reloads React code as you edit it.

768

Library Boilerplate. I built an opinionated starter template for JavaScript libraries.

383

Turbopack Seal Bug. I found a build crash in Next.js 16 when combining wildcard and static exports.

5

Redux Bootstrap. I wrote a bootstrapping function for Redux applications.

6

React DnD Touch. I made drag-and-drop work on mobile devices for React apps.

3

React Elmish Example. I built a React example showing how to use Elm architecture patterns.

170

Redux Todos. I made step-by-step examples teaching how to manage app data.

786

React Hot API. I built a tool that reloads React code without resetting component state.

89

The Redux Journey. I gave a talk at React Europe about Redux and app state.

87

React Transform. I made a specification for building live-editing tools for React.

69

React Europe 2016 Workshop. I made a workshop repository for learning React in 2016.

85