As far as I can tell it just automatically runs yarn build an does a copy to S3 ...

		tschellenbach on Oct 9, 2018 \| parent \| context \| favorite \| on: Netlify raises $30M to replace webservers with App... As far as I can tell it just automatically runs yarn build an does a copy to S3 whenever something happens in your GIT repo. Setting up a few scripts and S3/Cloudfront to do this on your own takes a bit of work. With Netlify you just press the button it seems.