added vm build

flake.nix

@@ -35,6 +35,24 @@
         ];
         specialArgs = { inherit nixos-hardware home-manager; };
       };
+      vm = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [ 
+          { nixpkgs.overlays = [ nur.overlay ]; }
+          (import ./machines/vm/configuration.nix) 
+          ({
+              # Let 'nixos-version --json' know about the Git revision
+              # of this flake.
+              system.configurationRevision = nixpkgs.lib.mkIf (self ? rev) self.rev;
+          })
+          ({
+              # For compatibility with other things, puts nixpkgs into NIX_PATH
+              environment.etc.nixpkgs.source = nixpkgs;
+              nix.nixPath = ["nixpkgs=/etc/nixpkgs"];
+          })
+        ];
+        specialArgs = { inherit nixos-hardware home-manager; };
+      };
     };
 
   };