{
  inputs = {
    utils.url = "github:numtide/flake-utils";
    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
  };
  outputs = { self, nixpkgs, utils }: utils.lib.eachDefaultSystem (system:
    let
      pkgs = nixpkgs.legacyPackages.${system};
      lib = nixpkgs.lib;
    in
    {
      packages = {
        docker = pkgs.writeShellScriptBin "docker" "${lib.getExe pkgs.presenterm} docker/docker.md -x";
      };
      devShell = pkgs.mkShell {
        buildInputs = with pkgs; [
          presenterm
        ];
      };
    }
  );
}