I recently moved my personal website (https://chrxr.com) to a static site in a rather complicated fashion.

I use Wagtail as my CMS, so I dockerized it and put it on an ECS cluster. I then use Wagtail Bakery to publish the pages to S3. I then change the task count on the ECS service to 0. For a DB I use sqlite in EFS, so it's persistent and backed up.

I was previously running on an EC2, and cut the cost from about $15 per month to ~$1-2 per month. All I'm paying for is <1mb S3 storage, a single route 53 hosted zone, and one image in an ECR repo.

If I want to add content, I spin up the ECS task again and work away. Note that part of the reason for such a low cost is my website get VERY little traffic :)

Apart from the cost, I also have the advantage that it's lightning quick most of the time, with caching provided by CloudFront.