Ether to Gwei, Wei, Finney, Szabo, Shannon etc.
Install Elm (e.g. with npm install --global elm or make install), then from the root project directory, run this:
$ elm make src/Main.elm --output elm.js
If you want to include the time-traveling debugger, add --debug like so:
$ elm make src/Main.elm --output elm.js --debug
(Make sure you have Uglify installed first, e.g. with npm install --global uglify-js or make install)
make build