In my session at the SPS Antwerp I showed the attendees how my personal branding workflow evolved over the past two years. For the demos all I needed was my web browser and Yeoman.IO.
I presented all of my stuff on the ancient looking MacOS armed with SharePoint virtual machines and in Office 365.
It works great for my for Office 365 development as for SharePoint On-premises. No more deployments during development just use it.
I use the resources out of Yeoman such as JavavScript and CSS files directly out of it. Just as we use things from a CDN such as jQuery. Before I can dig deeper on how to use it the first thing to do is to get your development environment ready.