diff --git a/flake.nix b/flake.nix
index b47813d..2f25480 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,8 +6,12 @@
   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