Use lib.meta.getExe

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

users/configs/matugen/default.nix

@@ -56,16 +56,15 @@ in
       };
     };
 
-    theme.extraConfig = let name = "theme-matugen"; in
-      lib.mkBefore "${pkgs.writeShellApplication {
-        inherit name;
-        runtimeInputs = with pkgs; [ matugen ];
-        text = ''
-          matugen image "${hmConfig.theme.configDir}/wallpaper" \
-            --type scheme-${hmConfig.theme.flavour} \
-            --mode "$(cat "${hmConfig.theme.configDir}/mode")" \
-            --contrast ${builtins.toString hmConfig.theme.contrast}
-        '';
-      }}/bin/${name}";
+    theme.extraConfig = lib.mkBefore (lib.meta.getExe (pkgs.writeShellApplication {
+      name = "theme-matugen";
+      runtimeInputs = with pkgs; [ matugen ];
+      text = ''
+        matugen image "${hmConfig.theme.configDir}/wallpaper" \
+          --type scheme-${hmConfig.theme.flavour} \
+          --mode "$(cat "${hmConfig.theme.configDir}/mode")" \
+          --contrast ${builtins.toString hmConfig.theme.contrast}
+      '';
+    }));
   };
 }