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rocksdb
A library that provides an embeddable, persistent key-value store for fast storage.

C++ 20,458 4,587 391 225
docusaurus
Easy to maintain open source documentation websites.

TypeScript 25,745 3,317 151 (14 issues need help) 34
react
A declarative, efficient, and flexible JavaScript library for building user interfaces.

JavaScript 172,553 MIT 34,670 593 (9 issues need help) 206
fboss
Facebook Open Switching System Software for controlling network switches.

C++ 718 236 14 14
fbzmq
Facebook ZeroMQ wrappers.

Python 280 80 2 1
hermes
A JavaScript engine optimized for running React Native.

C++ 6,566 MIT 353 67 (1 issue needs help) 14
hhvm
A virtual machine for executing programs written in Hack.

C++ 17,024 2,954 585 47
jest
Delightful JavaScript Testing.

TypeScript 36,041 MIT 5,243 1,409 (114 issues need help) 194
fbthrift
Facebook's branch of Apache Thrift, including a new C++ server.

C++ 2,178 Apache-2.0 533 38 1
create-react-app
Set up a modern web app by running one command.

JavaScript 89,513 MIT 22,512 948 (6 issues need help) 263

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