diff --git a/systems/aarch64-darwin/rialo/default.nix b/systems/aarch64-darwin/rialo/default.nix
new file mode 100644
index 0000000..792d425
--- /dev/null
+++ b/systems/aarch64-darwin/rialo/default.nix
@@ -0,0 +1,53 @@
+{ lib, pkgs, ... }:
+
+with lib.metacfg;
+{
+  homebrew = {
+    enable = true;
+    brews = [
+      "libusb"
+      "mas"
+    ];
+    masApps = { };
+    onActivation = {
+      cleanup = "zap";
+      autoUpdate = true;
+      upgrade = true;
+    };
+  };
+
+  metacfg = {
+    system.homebrew = enabled;
+    suites = {
+      common = enabled;
+    };
+    tools = {
+      direnv.enable = true;
+      alacritty.enable = true;
+    };
+  };
+
+  environment.systemPackages = with pkgs; [
+    azure-cli
+    kubectl
+    kubectx
+    k9s
+    attic-client
+    imagemagick
+    gh
+    libvirt
+    dnsmasq
+    virt-manager
+    qemu
+    claude-code
+    nodejs
+    goose-cli
+    aider-chat
+    fabric-ai
+  ];
+
+  users.users.harald.shell = pkgs.fish;
+
+  ids.gids.nixbld = 350;
+  system.stateVersion = 4;
+}