Class libraries for XHP. XHP is a Hack feature that augments the syntax of the language such that XML document fragments become valid Hack expressions.
Library to programatically generate Hack code and write it to signed files
Provides classes to use with XHP for common components of Twitter's Bootstrap library.
Hack language & HHVM debugger support for Visual Studio Code
Easily create JS controllers for XHP elements, and XHP wrappers for React elements
Request routing for HackLang
Find definitions (classes, functions, etc) in PHP and Hack files
Codegen (eg URI Map generation) on top of hhvm/hack-router