Adding in clean script

flake.nix

@@ -55,6 +55,18 @@
             Chart-cairo
           ]
         );
+
+        clean = pkgs.writeShellScriptBin "clean" ''
+          # Delete executables
+            find . -type f -executable -not -path '*/.git/*' -delete
+
+          # Delete all Haskell IR files
+            find . -type f -name '*.hi' -delete
+            find . -type f -name '*.o' -delete
+
+          # Delete any test graphs created
+            find . -type f -name 'test.png' -delete
+        '';
       in
       pkgs.mkShell {
         buildInputs = with pkgs.haskellPackages; [
@@ -63,6 +75,9 @@
           haskell-language-server
           ghcid
           hlint
+
+          # Scripts
+          clean
         ];
 
         shellHook = ''