Extension store version here - https://chrome.google.com/webstore/detail/proxmate/ifalmiidchkjjmkkbkoaibpmoeichmki
ProxMate is using grunt for building. To build a dist file (completely minified through googles clojurecompiler, cssmin and htmlmin) run grunt build.
Development and live reloading is available through grunt serve.
To build a non-minified version, run grunt src.
Contributions have to be unit tested and should not break existing functionality (grunt test).