Show HN: I built an Android OS in the browser

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  1. mobilegym

    MobileGym: A Verifiable and Highly Parallel Simulation Platform for Mobile GUI Agent Research · 一个运行在浏览器的手机模拟器 · A browser-hosted Android Simulator

    After burning through tens of billions of tokens, I built an Android-like OS that runs entirely in the browser

    The title is a bit clickbaity, but it is not that far from what actually happened.

    Over the past few months, we built MobileGym: a fully browser-based, Android-like simulation environment implemented in TypeScript + React.

    It currently includes 28 simulated apps, including WeChat, Alipay, Xiaohongshu/RED, bilibili, X, Reddit, WeChat Read, China Railway 12306, Tencent Meeting, Spotify, and eBay, plus system apps such as Home, Settings, Contacts, Messages, Photos, Calendar, Files, and Browser.

    The system supports Xiaomi theme packs and custom widgets. We also reimplemented a number of Android-like system mechanisms directly in the browser, including the Activity stack, Intents, gesture navigation, back handling, and soft keyboard behavior.

    MobileGym was originally built for GUI agent research, but it is also open for anyone who wants to play with it, study Android-like UI/system mechanisms, or fork the code and build something else on top of it.

    Online demo: https://mobilegym.dev

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the 2nd most popular programming language
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