diff --git a/flake.nix b/flake.nix
index 230e7fc..04911b5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,6 +21,7 @@
         pdf = pkgs.stdenv.mkDerivation {
             name = "F-klubbens sangbog continuous";
             src = ./.;
+            nativeBuildInputs = deps;
             installPhase = ''
                 ${pkgs.gnumake}/bin/make pdf
                 mv main_book.pdf $out
@@ -32,11 +33,20 @@
         devShells.${system}.default = pkgs.mkShell {
             packages = deps;
         };
+
         packages.${system} = {
             default = booklet; 
             pdf = pdf;
             #for ubuntu wsl
-            defaultPackage.${system} = booklet;
+            build = pkgs.writeScriptBin "build-sangbog" ''
+                if [[ "$1" == "" ]]; then
+                    target="booklet"
+                else
+                    target="$1"
+                fi
+                ${pkgs.gnumake}/bin/make $target
+
+            '';
         };
 
     };
diff --git a/wsl.sh b/wsl.sh
deleted file mode 100644
index 3c8bf0e..0000000
--- a/wsl.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/usr/bin/env bash
-
-# if nix on wsl, undo some symlinking
-nix build $@
-
-cp -L result main.pdf
-
-echo "The PDF has been built using nix on wsl, to be accessible from windows the pdf has been moved here as well as `main.pdf`"