feat: added update app in flake

flake.nix

@@ -31,6 +31,7 @@
       sysLinuxX64 = "x86_64-linux";
       sysDarwin = "aarch64-darwin";
       sysLinuxAarch = "aarch64-linux";
+      forAllSystems = nixpkgs.lib.genAttrs [ sysLinuxX64 sysLinuxAarch sysDarwin ];
 
       wrapPkgsSystem = { system, cudaSupport ? false }:
         let
@@ -150,6 +151,15 @@
         };
       };
 
+      packages = forAllSystems (system:
+        let pkgs = nixpkgs.legacyPackages.${system}; in rec {
+          default = update;
+
+          update = pkgs.callPackage ./update.nix { };
+        });
+
+
+
       defaultTemplate = self.templates.basicShell;
       templates = {
         basicShell = {