composer2nix --name composer2nix-example WARNING: There is a vendor/ folder in the root directory of the project! This folder will be used by the Nix builder and influence the outcome! If you don't want this to happen, then you should remove it before running any of the Nix commands! The above command produces three expressions: php-packages.nix containing the dependencies, composer-env.nix the build infrastructure and default.nix that can be used to compose the package from its dependencies. nix-build nix-build override.nix