Moving fast with high performance Hack The landing page for HHVM and the blog of Hack/HHVM What is HHVM? HHVM is an open-source virtual machine designed for executing programs written in Hack. HHVM uses a just-in-time (JIT) compilation approach to achieve great runtime performance while maintaining amazing development flexibility. HHVM supports the Hack programming language. We are moving fast, ma
