flake.nix.test

{
  description = "Das kleine Bitcoin-Lexikon";

  inputs = {
    # use release 23.05 branch of the GitHub repository as input, this is the most common input format
    # nixpkgs.url = "github:NixOS/nixpkgs/release-23.05";

    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    gitignore = {
      url = "github:hercules-ci/gitignore.nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

  };

  outputs =
    { self
    , nixpkgs
    , flake-utils
    , systems
    , gitignore
    ,
    }:
    flake-utils.lib.eachDefaultSystem (system:
    let
      pkgs = import nixpkgs { inherit system; };

      # pkgs = import <nixpkgs> { };

      # The path to the npm project
      src = ./.;

      # Read the package-lock.json as a Nix attrset
      packageLock = builtins.fromJSON (builtins.readFile (src + "/package-lock.json"));

      # Create an array of all (meaningful) dependencies
      deps = builtins.attrValues (removeAttrs packageLock.packages [ "" ])
        # ++ builtins.attrValues (removeAttrs packageLock.dependencies [ "" ])
      ;

      # Turn each dependency into a fetchurl call
      tarballs = map (p: pkgs.fetchurl { url = p.resolved; hash = p.integrity; }) deps;

      # Write a file with the list of tarballs
      tarballsFile = pkgs.writeTextFile {
        name = "tarballs";
        text = builtins.concatStringsSep "\n" tarballs;
      };



    in
    {
      # this shell can be instantiated with `nix develop`
      devShells.default = pkgs.mkShell {
        buildInputs = [
          pkgs.nodejs-18_x
        ];

        shellHook = ''
          echo 'yoyoyo, nix is a go-go!'
          # npm install
        '';
      };

      packages.default = pkgs.mkShell {
        buildInputs = [
          pkgs.nodejs-18_x
        ];

        shellHook = ''
          echo 'yoyoyo, imma build dis lets go!'
          npm install
          npm build
        '';
      };

      packages.testpkg = pkgs.mkShell {
        buildInputs = [
          pkgs.nodejs-18_x
        ];

        shellHook = ''
          echo 'yoyoyo, imma build dis lets go!'
          npm install
          npm build
        '';
      };


      packages.deploy = pkgs.mkShell {
        buildInputs = [
          pkgs.nodejs-18_x
        ];

        shellHook = ''
          echo 'yoyoyo, imma deploy dis lets gooo!'
          npm install
          npm build
          npm run deploy
        '';
      };

      packages.lockTest = pkgs.stdenv.mkDerivation {
        inherit (packageLock) name version;
        inherit src;
        buildInputs = [ pkgs.nodejs ];
        buildPhase = ''
          # export HOME=$PWD/.home
          # export npm_config_cache=$PWD/.npm
          # mkdir -p $out/js
          # cd $out/js
          # cp -r $src/. .

          # while read package
          # do
          #   echo "caching $package"
          #   npm cache add "$package"
          # done <${tarballsFile}

          echo "YOYOYOYOYOYOYOYOY BUUUUUUUUUUUUUUILD"
          # npm ci
          # npm run build
        '';

        installPhase = ''
          ln -s $out/js/node_modules/.bin $out/bin
        '';
      };

      packages.appBuild = pkgs.stdenv.mkDerivation {
        name = "example-ts-node";
        version = "0.1.0";
        src = ./.;
        # src = gitignore.lib.gitignoreSource ./.; # uses the gitignore in the repo to only copy files git would see
        buildInputs = [
          pkgs.nodejs-18_x
        ];
        # https://nixos.org/manual/nixpkgs/stable/#sec-stdenv-phases
        # configurePhase = ''
        #   echo "executing configurePhase"
        #   npm ci
        # '';

        buildPhase = ''
          echo "executing buildPhase"

          # each phase has pre/postHooks. When you make your own phase be sure to still call the hooks
          runHook preBuild
          # npm ci
          npm run build
          runHook postBuild

          echo "output test" > $out
        '';
        installPhase = ''
          echo "executing installPhase"

          runHook preInstall
          # cp -r node_modules $out/node_modules
          # cp package.json $out/package.json
          # cp -r dist $out/dist
          runHook postInstall
        '';
      };




    });
}