{
  description = "tlater.net web server contents";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-20.09";
    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, nixpkgs-unstable, flake-utils }@inputs:
    flake-utils.lib.simpleFlake {
      inherit self;
      nixpkgs = nixpkgs-unstable;
      name = "tlaternet-templates";

      overlay = final: prev: {
        tlaternet-templates = rec {
          packages = rec {
            nodeEnv = prev.callPackage ./nix/override.nix { };
            templates = prev.callPackage ({ stdenv, nodejs, rename, ... }:
              let nodeDeps = nodeEnv.shell.nodeDependencies;
              in stdenv.mkDerivation {
                name = "tlaternet-templates";
                src = ./.;

                buildInputs = [ nodejs rename ];
                buildPhase = ''
                  ln -s ${nodeDeps}/lib/node_modules ./node_modules
                  export PATH="${nodeDeps}/bin:$PATH"

                  npm run build
                '';

                installPhase = ''
                  cp -r dist $out/
                '';

                postFixup = ''
                  rename 's/.html$/.html.hbs/' $out/browser/*.html
                '';
              }) { };
          };
          defaultPackage = packages.templates;

          devShell = prev.mkShell {
            buildInputs = with prev;
              with nodePackages;
              [
                nodejs
                node2nix

                # Handy dev tools
                prettier
                typescript
                typescript-language-server
              ] ++ packages.nodeEnv.shell.buildInputs;
          };

          # TODO: This would be the ideal. Sadly, parcel isn't smart
          # enough to pull its plugins from $NODE_PATH.
          #
          #
          # devShell = packages.nodeEnv.shell.override {
          #   buildInputs = with prev; with nodePackages; [
          #     node2nix

          #     prettier
          #     typescript-language-server
          #   ];
          # };
        };
      };
    };
}