The usecase is a cache. http://cache.nixos.org/ http://cache.nixos.org/ All it needs to do is to get you the data faster than the compilation itself - most of

The usecase is a cache. http://cache.nixos.org/ http://cache.nixos.org/ All it needs to do is to get you the data faster than the compilation itself - most of the time - to be useful. I also wonder at the original thinking, given the use case. Cache usually has high ratio of download to upload and doesn't need high reliability. S3 doesn't excel at the costs of fetching the data from it, at all.