Genie is a Chrome Extension plugin that adds customized UIs on top of a web application to retarget inputs to new input modalities. Current prototype UIs add support for audio/voice commands, keyboard shortcuts, and command line commands. Contact amaswea@cs.washington.edu if you are interested in using Genie to build a new UI.
Amanda Swearngin, Andrew Ko, James Fogarty. Genie: Input Retargeting on the Web through Command Reverse Engineering. SIGCHI Conference on Human Factors in Computing Systems (CHI), 2017. PDF