nixpkgs/pkgs/development/node-packages/README.md

Node.js packages

To add a package from NPM to nixpkgs:

1. Install node2nix: nix-env -f '<nixpkgs>' -iA nodePackages.node2nix.
2. Modify pkgs/development/node-packages/node-packages.json, to add, update, or remove package entries.
3. Run the script: cd pkgs/development/node-packages && sh generate.sh.
4. Build your new package to test your changes: cd /path/to/nixpkgs && nix-build -A nodePackages.<new-or-updated-package>. To build against a specific node.js version (e.g. 5.x): nix-build -A nodePackages_5_x.<new-or-updated-package>
5. Add, commit, and share your changes!