确认 hostPlatform 会起作用

flake.nix

@@ -120,6 +120,32 @@
 				./modules/virtualisation/waydroid.nix
 				./modules/home/root.nix
 				./modules/home/chn.nix
+
+				({ pkgs, ...}@inputs:
+				{
+					config.environment.systemPackages =
+					[
+						( inputs.inputs.nixpkgs.lib.nixosSystem
+						{
+							system = "x86_64-linux";
+							modules = [({ pkgs, ... }@inputs:
+							{
+								config.nixpkgs =
+								{
+									hostPlatform =
+										{ system = "x86_64-linux"; gcc = { arch = "alderlake"; tune = "alderlake"; }; };
+									config.allowUnfree = true;
+								};
+								config.nixpkgs.overlays = [( final: prev: rec
+								{
+									optimizeWithFlags = pkg: flags: pkg.overrideAttrs (old:
+										{ NIX_CFLAGS_COMPILE = [ (old.NIX_CFLAGS_COMPILE or "") ] ++ flags; });
+									hello = optimizeWithFlags prev.hello [ "-frecord-gcc-switches" ];
+								} )];
+							})];
+						} ).pkgs.hello
+					];
+				})
 			];
 		};