I use S3 for hosting the website at a low cost.
I use CloudFront for lightning-fast worldwide distribution, caching and HTTP redirects.
I use Lambda for managing dynamic needs of the site and to process and forward email.
Hugo is used as the Generator to create the site from a group of static files using my After Dark theme.
I use GitHub for source control.
I use Serverless to manage the versioning and deployment of my Lambdas.
I use Atom because it eclipses SublimeText in usability, visual appeal and support for useful coding extensions.