Since early 2019, I host downloads for my app The Archive on Amazon’s servers. The S3 bucket is a cheap-enough storage of the zip files, and the CloudFront cache is a content distribution network across the globe that improve download speeds. Here’s a long tutorial, because I will most likely forget how I did all this in a while, and chances are you don’t know how to do this either.

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I was looking for an old post and found that the paginated list of blog posts didn’t quite contain all the posts I expected. Turns out I introduced an off-by-1 bug there, computing pages for 10 posts per page, but working with all_posts.each_slice(10-1), effectively dropping 1 post per page.

Of course my website isn’t unit-tested, so no wonder :)