Hack is a typeface that is designed for souce code text. It is a derivative of the Bitstream Vera Sans Mono and DejaVu Sans Mono lineage. Free, open source. MIT license. Open to contributions from anyone. Drop by our Github repository and weigh in.
Hyperion is an in-app design review tool to inspect measurements, attributes, and animations. Hyperion is open source and sits on top of plugins, allowing you to add your own plugins and customize your toolset.
Hyperion for iOS is live on GitHub, Android forthcoming.