Add kagami-air-m1

kagami-air-m1/m1-support/firmware/default.nix

@@ -0,0 +1,18 @@
+{ config, pkgs, lib, ... }:
+{
+  hardware.firmware = [
+    (pkgs.stdenvNoCC.mkDerivation {
+      name = "firmware";
+      buildCommand = ''
+        mkdir -p $out/lib/firmware
+        FIRMWARE='${./firmware.tar}'
+        if [ -e "$FIRMWARE" ]; then
+          tar xf "$FIRMWARE" -C $out/lib/firmware
+        else
+          # stop nixos infra from breaking when it doesn't have any firmware
+          touch $out/lib/firmware/.dummy
+        fi
+      '';
+    })
+  ];
+}