add: all files

shell.nix

@@ -0,0 +1,24 @@
+let
+
+  nixpkgs = fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-24.05";
+
+  pkgs = import nixpkgs { config = {}; overlays = []; };
+
+    build = pkgs.callPackage ./build.nix { };
+
+in
+
+
+pkgs.mkShellNoCC {
+
+  packages = with pkgs; [
+
+    cowsay
+
+    lolcat
+
+    build
+
+  ];
+
+}