feat: update flake with new arch

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1783703440,
-        "narHash": "sha256-O3/YajjWo001VUIgD8BwaRdSNLUFe7nZ1qV5TwhRBcw=",
+        "lastModified": 1787204541,
+        "narHash": "sha256-OURZPknrTjQrlNyxPdqzyqmU/81Wes1CUP/Ft1Rv/YI=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "8f0500b9660505dc3cb647775fe9a978a74b5283",
+        "rev": "5880666fd9eb563038431edb35c2d0aa595884e6",
         "type": "github"
       },
       "original": {

flake.nix

@@ -5,10 +5,19 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-26.05";
   };
 
-  outputs = { self, nixpkgs }: {
-    packages.x86_64-linux.oryxis =
-      nixpkgs.legacyPackages.x86_64-linux.callPackage ./package.nix {};
-
-    packages.x86_64-linux.default = self.packages.x86_64-linux.oryxis;
+  outputs = { self, nixpkgs }:
+    let
+      systems = [ "x86_64-linux" "aarch64-linux" ];
+      forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
+    in
+    {
+      packages = forAllSystems (system:
+        let
+          oryxis = nixpkgs.legacyPackages.${system}.callPackage ./package.nix { };
+        in
+        {
+          inherit oryxis;
+          default = oryxis;
+        });
     };
 }