{
  description = "Quartz org-roam dev shell";

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

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs = [
            pkgs.nodejs_22
            pkgs.elixir
            ((pkgs.emacsPackagesFor pkgs.emacs-nox).emacsWithPackages (epkgs: [ epkgs.ox-hugo ]))
            pkgs.mcp-nixos
          ];

          shellHook = ''
            echo "Node $(node --version) / npm $(npm --version)"
            elixir --version 2>/dev/null | head -1 || true
            echo "Emacs $(emacs --version | head -1)"
          '';
        };
      });
}