In the last 6 years working with Nix and mostly in last two years full-time, I’ve noticed a few patterns. These are mostly direct or indirect result of not having a “good enough” infrastructure to support how much Nix has grown (1600+ contributors, 1500 pull requests per month). Without further ado, I am announcing https://cachix.org - Binary Cache as a Service that is ready to be used after two months of work. What problem(s) does cachix solve? The main motivation is to save you time and compute resources waiting for your packages to build. By using a shared cache of already built packages, you’ll only have to build your project once.