We've been using Nix for deploying a Rails app for an enterprise customer for quite a few years now. One area where it shines for us is the ability to build it on relatively recent version of Ubuntu and deploy to a (almost EOL) RHEL6 box. Bundling, assets and various other tasks take just a few minutes. We also have ~20 Go services that are also deployed via Nix, and building takes seconds.
However, it can be quite cumbersome to get a Nix expression to the point where it builds reliably for something that takes multiple steps like a Rails app, especially if you're building on macOS and deploying to Linux. It's come a _long_ way in recent years, but with Enterprise customers now embracing containerization we migrated everything to that and haven't looked back.
However, it can be quite cumbersome to get a Nix expression to the point where it builds reliably for something that takes multiple steps like a Rails app, especially if you're building on macOS and deploying to Linux. It's come a _long_ way in recent years, but with Enterprise customers now embracing containerization we migrated everything to that and haven't looked back.