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Meta Experimental

These are Meta projects that are not necessarily used in production but are being developed in the open nevertheless.

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  1. Recoil Recoil Public archive

    Recoil is an experimental state management library for React apps. It provides several capabilities that are difficult to achieve with React alone, while being compatible with the newest features o…

    JavaScript 19.6k 1.2k

  2. libunifex libunifex Public

    Unified Executors

    C++ 1.7k 204

  3. Robyn Robyn Public

    Robyn is an experimental, AI/ML-powered and open sourced Marketing Mix Modeling (MMM) package from Meta Marketing Science. Our mission is to democratise modeling knowledge, inspire the industry thr…

    Jupyter Notebook 1.4k 416

  4. hermit hermit Public

    Hermit launches linux x86_64 programs in a special, hermetically isolated sandbox to control their execution. Hermit translates normal, nondeterministic behavior, into deterministic, repeatable beh…

    Rust 1.3k 42

  5. MIRAI MIRAI Public archive

    Rust mid-level IR Abstract Interpreter

    Rust 1k 83

  6. reverie reverie Public

    An ergonomic and safe syscall interception framework for Linux.

    Rust 800 35

Repositories

Showing 10 of 43 repositories
  • free-threading-benchmarking Public

    Benchmark results for free-threaded builds of Python

    facebookexperimental/free-threading-benchmarking’s past year of commit activity
    27 BSD-3-Clause 5 2 0 Updated Dec 18, 2025
  • triton Public

    Github mirror of trition-lang/triton repo.

    facebookexperimental/triton’s past year of commit activity
    MLIR 107 MIT 31 3 47 Updated Dec 18, 2025
  • moxygen Public

    Implementation of IETF MOQ protocol

    facebookexperimental/moxygen’s past year of commit activity
    C++ 89 MIT 18 7 4 Updated Dec 17, 2025
  • rust-shed Public

    Repository containing Rust crates common between other Facebook open source projects (like Mononoke or Eden).

    facebookexperimental/rust-shed’s past year of commit activity
    Rust 140 Apache-2.0 45 0 2 Updated Dec 17, 2025
  • edencommon Public

    Shared library for Watchman and Eden projects.

    facebookexperimental/edencommon’s past year of commit activity
    C++ 13 MIT 17 2 0 Updated Dec 17, 2025
  • xrpa Public

    Xrpa (pronounced "zerpa") is a platform architecture framework for building experimental XR experiences.

    facebookexperimental/xrpa’s past year of commit activity
    Python 8 Apache-2.0 0 0 0 Updated Dec 17, 2025
  • siMMMulator Public

    siMMMulator is an open source R-package that helps users to generate simulated data to plug into Marketing Mix Models (MMMs). The package features a variety of functions to help users build a data set from scratch.

    facebookexperimental/siMMMulator’s past year of commit activity
    R 58 14 4 4 Updated Dec 16, 2025
  • fb-vscode Public Forked from microsoft/vscode

    Visual Studio Code

    facebookexperimental/fb-vscode’s past year of commit activity
    TypeScript 36 MIT 39,274 0 3 Updated Dec 16, 2025
  • reverie Public

    An ergonomic and safe syscall interception framework for Linux.

    facebookexperimental/reverie’s past year of commit activity
    Rust 800 35 2 0 Updated Dec 12, 2025
  • CARL Public

    Classical Action Recognition Library

    facebookexperimental/CARL’s past year of commit activity
    C++ 8 MIT 3 1 0 Updated Dec 11, 2025
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