[feat] Add all nix config with device gates

config/nix/nixos/device.nix

@@ -0,0 +1,25 @@
+{ nixpkgs, devices, inputs, overlays, home-manager, ... }:
+builtins.listToAttrs (builtins.map (device: {
+  name = device.name;
+  value = nixpkgs.lib.nixosSystem {
+    system = device.system;
+    specialArgs = { inherit device; };
+    modules = [
+      { nixpkgs.overlays = overlays; }
+      ./configuration.nix
+      home-manager.nixosModules.home-manager
+      {
+        nixpkgs.config.allowUnfree = true;
+        home-manager = {
+          useGlobalPkgs = true;
+          useUserPackages = true;
+          extraSpecialArgs = {
+            inherit inputs;
+            inherit device;
+          };
+          users.${device.user}.imports = [ ../common/home.nix ];
+        };
+      }
+    ];
+  };
+}) devices)