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    168 repositories

    • astryx

      Public
      An open source design system that's fully customizable and agent ready
      TypeScript
      •
      MIT License
      •662•7.8k•134•68•Updated Jul 11, 2026Jul 11, 2026

    • pyrefly-pre-commit

      Public
      A pre-commit hook for Pyrefly.
      Python
      •
      MIT License
      •4•31•1•0•Updated Jul 11, 2026Jul 11, 2026

    • pyrefly

      Public
      A fast type checker and language server for Python
      pythonrusttypechecker
      pythonrusttypecheckertypeslanguage-serveridelanguage-server-protocoltypingvscode-extensioncode-quality
      Rust
      •
      MIT License
      •431•6.8k•543•168•Updated Jul 11, 2026Jul 11, 2026

    • buck2

      Public
      Build system, successor to Buck
      Rust
      •
      Apache License 2.0
      •371•4.4k•295•91•Updated Jul 11, 2026Jul 11, 2026

    • hhvm

      Public
      A virtual machine for executing programs written in Hack.
      phphackhhvm
      phphackhhvmhacklang
      C++
      •
      Other
      •3.1k•19k•410•128•Updated Jul 11, 2026Jul 11, 2026

    • fbthrift

      Public
      Facebook's branch of Apache Thrift, including a new C++ server.
      C++
      •
      Apache License 2.0
      •638•2.7k•45•7•Updated Jul 11, 2026Jul 11, 2026

    • flow

      Public
      Adds static typing to JavaScript to improve developer productivity and code quality.
      Rust
      •
      MIT License
      •1.9k•22k•586•7•Updated Jul 11, 2026Jul 11, 2026

    • folly

      Public
      An open-source C++ library developed and used at Facebook.
      C++
      •
      Apache License 2.0
      •5.9k•30k•315•141•Updated Jul 11, 2026Jul 11, 2026

    • lexical

      Public
      Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.
      TypeScript
      •
      MIT License
      •2.2k•24k•324•33•Updated Jul 11, 2026Jul 11, 2026

    • DNE-TaaC

      Public
      TAAC (Test-As-A-Config) is a thrift-defined integration test framework for validating datacenter network products and platforms.
      Python
      •
      Apache License 2.0
      •1•1•0•0•Updated Jul 11, 2026Jul 11, 2026

    • openbmc

      Public
      OpenBMC is an open software framework to build a complete Linux image for a Board Management Controller (BMC).
      C
      •
      Apache License 2.0
      •306•682•45•18•Updated Jul 11, 2026Jul 11, 2026

    • fboss

      Public
      Facebook Open Switching System Software for controlling network switches.
      C++
      •
      Other
      •399•978•25•134•Updated Jul 11, 2026Jul 11, 2026

    • sapling

      Public
      A Scalable, User-Friendly Source Control System.
      Rust
      •
      GNU General Public License v2.0
      •375•6.9k•233•97•Updated Jul 10, 2026Jul 10, 2026

    • rebalancer

      Public
      Rebalancer is a domain-specific language and tool for specifying and solving assignment problems (eg, putting balls in boxes with complex rules).
      C++
      •
      Apache License 2.0
      •3•9•0•5•Updated Jul 10, 2026Jul 10, 2026

    • buck2-prelude

      Public
      Prelude for the Buck2 project
      Starlark
      •
      Apache License 2.0
      •65•69•1•1•Updated Jul 10, 2026Jul 10, 2026

    • stylex

      Public
      StyleX is the styling system for ambitious user interfaces.
      JavaScript
      •
      MIT License
      •436•9.6k•109•85•Updated Jul 10, 2026Jul 10, 2026

    • proxygen

      Public
      A collection of C++ HTTP libraries including an easy to use HTTP server.
      C++
      •
      Other
      •1.5k•8.4k•24•17•Updated Jul 10, 2026Jul 10, 2026

    • docusaurus

      Public
      Easy to maintain open source documentation websites.
      reactjavascriptopen-source
      reactjavascriptopen-sourcewebsitedocumentationhacktoberfest
      TypeScript
      •
      MIT License
      •10k•66k•286•92•Updated Jul 10, 2026Jul 10, 2026

    • Pysa

      Public
      Security-focused Python Static Analyzer
      OCaml
      •
      MIT License
      •3•10•0•0•Updated Jul 10, 2026Jul 10, 2026

    • time

      Public
      Meta's Time libraries
      Go
      •
      Apache License 2.0
      •88•647•1•0•Updated Jul 10, 2026Jul 10, 2026

    • igl

      Public
      Intermediate Graphics Library (IGL) is a cross-platform library that commands the GPU. It provides a single low-level cross-platform interface on top of various…
      C++
      •
      Other
      •215•3.2k•0•1•Updated Jul 10, 2026Jul 10, 2026

    • relay

      Public
      Relay is a JavaScript framework for building data-driven React applications.
      Rust
      •
      MIT License
      •1.9k•19k•629•221•Updated Jul 10, 2026Jul 10, 2026

    • openr

      Public
      Distributed platform for building autonomic network functions.
      C++
      •
      MIT License
      •251•935•11•11•Updated Jul 10, 2026Jul 10, 2026

    • fb303

      Public
      fb303 is a core set of thrift functions that provide a common mechanism for querying stats and other information from a service.
      C++
      •
      Apache License 2.0
      •64•94•6•12•Updated Jul 10, 2026Jul 10, 2026

    • Lifeguard

      Public
      Lifeguard is a static analyzer to detect Lazy Imports incompatibilities and ease the adoption overhead for Lazy Imports in Python
      pythonruststatic-analysis
      pythonruststatic-analysislazy-importspep810
      Python
      •
      MIT License
      •6•79•0•1•Updated Jul 10, 2026Jul 10, 2026

    • wangle

      Public
      Wangle is a framework providing a set of common client/server abstractions for building services in a consistent, modular, and composable way.
      C++
      •
      Apache License 2.0
      •545•3.1k•34•14•Updated Jul 10, 2026Jul 10, 2026

    • mvfst

      Public
      An implementation of the QUIC transport protocol.
      C++
      •
      MIT License
      •286•1.7k•27•8•Updated Jul 10, 2026Jul 10, 2026

    • BGP

      Public
      Meta's BGP (Border Gateway Protocol) routing daemon for large-scale data center networks, built as part of the FBOSS forwarding stack.
      C++
      •
      Apache License 2.0
      •3•11•0•0•Updated Jul 10, 2026Jul 10, 2026

    • watchman

      Public
      Watches files and records, or triggers actions, when they change.
      C++
      •
      MIT License
      •1.1k•14k•216•34•Updated Jul 10, 2026Jul 10, 2026

    • CacheLib

      Public
      Pluggable in-process caching engine to build and scale high performance services
      performancecppcache
      performancecppcacheconcurrencyssdcache-engine
      C++
      •
      Apache License 2.0
      •320•1.6k•1•20•Updated Jul 10, 2026Jul 10, 2026
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