Automattic archived their public themes repository on GitHub and moved development to a private GitHub Enterprise repository. The themes are still available via SVN and I needed a quick way to download and test multiple themes when working with collaborators. So I built a simple Cloudflare Worker that downloads directly from Automattic's servers and packages themes on demand. While svn export url theme should do the trick, I also wanted a quick selector and a GUI. Some might find this useful. Here's the link.