You'll need node.js and the ionic package and bower
$ npm install -g ionic bower
Clone this repo, cd into relay
and run:
$ ionic lib update
$ bower install
configure the platforms you want to use:
(substitute android for ios if not on a Mac, but if you can, the ios development toolchain is a lot easier to work with until you need to do anything custom to Android.)
$ ionic platform add ios
build & emulate:
$ ionic build ios
$ ionic emulate ios
or to use/view in a web browser
$ ionic serve
make some and help work them!