fix: use specialArgs to prevent infinite loop

The `_module.args` option can't be used to pass modules to import, since
it can only be used during the config phase, not the import phase.

aether/config.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, self, ... }:
+{ config, lib, pkgs, aether, ... }:
 {
   networking.hostName = "toki-aether";
   time.timeZone = "America/New_York";
@@ -23,8 +23,8 @@
   # Aether modules
 
   imports = [
-    self.nixosModules.aether
-    self.nixosModules.deploy-rpi5
+    aether.aether
+    aether.deploy-rpi5
   ];
 
   aether.domain = "tokinanpa.dev";

flake.nix

@@ -37,8 +37,8 @@ outputs = inputs@{ self, nixpkgs, agenix, rpi5-kernel, ... }:
 
     nixosConfigurations."toki-aether" =
       nixpkgs.lib.nixosSystem {
+        specialArgs.aether = self.nixosModules;
         modules = [
-          { _module.args = inputs; }
           agenix.nixosModules.default
           ./aether/hardware-configuration.nix
           ./aether/config.nix