I've decided to end the experiment with a separate vanity domain
(superloopy.io) for this site. .io domains are expensive, and I don't
want to pay for one any longer. And more to the point, I don't want to
pay for more than one vanity domain. Since I've been using the
brautaset.org domain for my email for nearly two decades it was a
pretty easy choice to keep that one.
I'm still deploying to S3, and still using CloudFormation to set up S3 buckets, SSL Certificates and CloudFront distributions. For the next 6 months I'll redirect requests to www.brautaset.org.