Nix: add cross-build package

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1713537308,
-        "narHash": "sha256-XtTSSIB2DA6tOv+l0FhvfDMiyCmhoRbNB+0SeInZkbk=",
+        "lastModified": 1717974879,
+        "narHash": "sha256-GTO3C88+5DX171F/gVS3Qga/hOs/eRMxPFpiHq2t+D8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5c24cf2f0a12ad855f444c30b2421d044120c66f",
+        "rev": "c7b821ba2e1e635ba5a76d299af62821cbcb09f3",
         "type": "github"
       },
       "original": {

flake.nix

@@ -18,6 +18,12 @@
         localSystem.system = system;
         overlays = with self.overlays; [hyprwayland-scanner];
       });
+    pkgsCrossFor = eachSystem (system: crossSystem:
+      import nixpkgs {
+        localSystem = system;
+        crossSystem = crossSystem;
+        overlays = with self.overlays; [hyprwayland-scanner];
+      });
     mkDate = longDate: (lib.concatStringsSep "-" [
       (builtins.substring 0 4 longDate)
       (builtins.substring 4 2 longDate)
@@ -37,6 +43,7 @@
     packages = eachSystem (system: {
       default = self.packages.${system}.hyprwayland-scanner;
       inherit (pkgsFor.${system}) hyprwayland-scanner;
+      hyprwayland-scanner-cross = (pkgsCrossFor.${system} "aarch64-linux").hyprwayland-scanner;
     });
 
     formatter = eachSystem (system: pkgsFor.${system}.alejandra);

nix/default.nix

@@ -15,6 +15,9 @@ stdenv.mkDerivation {
   nativeBuildInputs = [
     cmake
     pkg-config
+  ];
+
+  buildInputs = [
     pugixml
   ];