News for Developers

CrypTen: A Contributor’s Story with Scott Moses Sunarto

The “Contributor’s Story” series is intended to provide a face and voice to our major open source ccontributors and community members, an overview of the projects they are working on, and the successes and challenges contributors face when developing. ...

Open Source 2021

April 13, 2021

Facebook is an Open Source Ally

Facebook is an ally for inclusion in open source, and we are committed to fostering inclusive environments for all who wish to participate in open source communities. As part of this effort, we’re making a few changes to how we engage with the open source communities we are part of and how our own open source projects are maintained. First, we're...

Open Source 2021

April 12, 2021

The Rust Starlark library

We’re excited to announce our open-source Rust library for working with the Starlark programming language, including a parser, evaluator, linter and debugger. Starlark as a configuration languageStarlark is a programming language designed for configuring applications. It sits between a full programming language (like Python) and a configuration...

Open Source 2021

April 8, 2021

WebXR: A Contributor’s Story with Zhixiang Teoh

The “Contributor’s Story” series is intended to provide a face and voice to our major contributors and community members, an overview of the projects they are working on, and the successes and challenges contributors face when developing. ...

Open Source 2021

April 6, 2021

Facebook Open Source introduces the MLH Fellowship Class of Spring 2021

Facebook Open Source is continuing to partner with GitHub and Major League Hacking (MLH) in 2021 on the MLH Fellowship program: a 12-week remote fellowship designed to host, mentor, and support developers hacking on open source projects. For Facebook, investing in open source is a way to empower developers as well as broader communities of...

Open Source 2021

March 31, 2021

ELI5: Buck - Modular Build System

In this post, we explain Buck, a high-performance build tool, in a way that is super simple to understand (or as it’s commonly known online, ELI5). If you're interested in learning by watching or listening, check out a video about this open source project on our Facebook Open Source YouTube channel.Why Buck? It’s a well-known fact that managing ...

Open Source 2021

March 29, 2021

Announcing Season 2 of “Explain Like I’m 5” Series

Since October 2020, the Facebook Open Source team has been publishing a series of short videos (~1 min in length) called Explain Like I’m 5, or ELI5. In these beginner-friendly videos, one of the Facebook Open Source Developer Advocates explains a Facebook open source project or a topic in the open source ecosystem in a way that is easy to...

Open Source 2021

March 18, 2021

ELI5: Watchman - Watching for Changes to Build Faster

In this post, we talk about a project called Watchman, a file watching service. If you would like to watch a video about Watchman, go to the Facebook Open Source YouTube channel. Why Watchman? Web development has changed dramatically in the past decade. Let's consider what goes into developing and deploying a web app today. After deploying your...

Open Source 2021

March 15, 2021

Introducing Relay Hooks: Improved React APIs for Relay

This article was written in collaboration with Juan Tejada, a Software Engineer at Facebook. Today, we are excited to release Relay Hooks: a set of new, more developer-friendly Relay APIs built using React Hooks. ...

Open Source 2021

March 9, 2021