What is it like to work on the HHVM team at Facebook? - Quora
Hack Language Blog
Parola Kırma Saldırıları (Linux) // AquieLL | TurkHackTeam
Hack: a new programming language for HHVM - Engineering at Meta
HackLang Introduction | PPT
HipHop Virtual Machine (HHVM) for PHP and The hack language - Speaker Deck
GitHub - vug/hacklang-project-boilerplate: A minimal project with some hack extensions (hhvm-autoload, hhast, hacktest, fbexcept), a tiny library and two example scripts