Flake update

flake.nix

@@ -5,11 +5,10 @@
   outputs = {
     self,
     nixpkgs,
-    systems,
   }: let
     inherit (nixpkgs) lib;
     eachSystem = f:
-      lib.genAttrs (import systems) (system:
+      lib.genAttrs ["aarch64-linux" "x86_64-linux"] (system:
         f {
           inherit system;
           pkgs = nixpkgs.legacyPackages.${system};