Rebase to flake parts #9

modules/hosts/ideapad/hardware.nix

@@ -0,0 +1,22 @@
+{ ... }: {
+  flake.nixosModules.ideapadHardware =
+    # Mobile NixOS' depthcharge system-type wires up the disk image, kernel partitions and
+    # rootfs entirely; we don't need a generated `hardware-configuration.nix`. This module is a
+    # placeholder so the host follows the standard `<host>Configuration` / `<host>Hardware` shape
+    # and gives us a place to drop kernel-config knobs that aren't covered by the device family.
+    { ... }:
+    {
+      # Useful on a portable: mounting USB sticks (often exFAT) and SMB shares.
+      boot.supportedFilesystems = [ "exfat" "cifs" ];
+
+      # Mobile NixOS builds its own kernel — the regular `boot.kernelModules` won't help if the
+      # module isn't compiled in. `mobile.kernel.structuredConfig` lives upstream in
+      # `modules/system-types/depthcharge/kernel/` and is the right layer to add features.
+      mobile.kernel.structuredConfig = [
+        (helpers: with helpers; {
+          CIFS = module;
+          EXFAT_FS = module;
+        })
+      ];
+    };
+}