{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

  outputs =
    { nixpkgs, self, ... }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };

      inherit (pkgs)
        buildGoModule
        buildNpmPackage
        fetchFromGitHub
        mkShell
        ;
    in
    {
      packages.${system} = {
        openapi-generate-html = import ./openapi-generate-html.nix {
          inherit buildNpmPackage fetchFromGitHub;
        };

        openapi-mock = import ./openapi-mock.nix {
          inherit buildGoModule fetchFromGitHub;
        };
      };

      devShells.${system} = with pkgs; {
        go-api = mkShell {
          packages = [
            curlMinimal
            go
            jq
          ];

          shellHook = ''go version'';
        };

        openapi = mkShell {
          packages = [
            openapi-generator-cli
            openapi-tui

            self.packages.${system}.openapi-generate-html
            self.packages.${system}.openapi-mock
          ];
        };
      };
    };
}