Scarf Gateway is a core service of Scarf (
https://scarf.sh) that we've been running in production since 2020. You can think of it as a powerful link shortener that can also sit in front of Docker containers, Python packages, tarballs, etc - any other artifact you distribute can sit behind it. It also emits logs that can be used for robust analytics that you probably aren't getting from your package registry provider today.
It was originally a nginx+lua service that we migrated to Haskell as the requirements became more complex. Now that the code has settled, we've open-sourced it, so you can self host Scarf Gateway or get involved with development!