Migrate to Snowfall (#1)

Reviewed-on: #1
Co-authored-by: Evan Reichard <evan@reichard.io>
Co-committed-by: Evan Reichard <evan@reichard.io>

modules/nixos/hardware/asahi/default.nix

@@ -0,0 +1,27 @@
+{ config, lib, inputs, namespace, ... }:
+let
+  inherit (lib) types optionalAttrs;
+  inherit (lib.${namespace}) mkOpt mkBoolOpt;
+
+  cfg = config.${namespace}.hardware.asahi;
+in
+{
+  imports = [
+    inputs.apple-silicon.nixosModules.default
+  ];
+
+  options.${namespace}.hardware.asahi = {
+    enable = lib.mkEnableOption "support for asahi linux";
+    enableGPU = mkBoolOpt false "enable gpu driver";
+    firmwareDirectory = mkOpt types.path null "firmware directory";
+  };
+
+  config = {
+    hardware.asahi = {
+      enable = cfg.enable;
+    } // optionalAttrs cfg.enable {
+      peripheralFirmwareDirectory = cfg.firmwareDirectory;
+      useExperimentalGPUDriver = cfg.enableGPU;
+    };
+  };
+}