overheating: add patched ssdt

nix/hardware/overheating/dsdt.nix

@@ -0,0 +1,20 @@
+{ pkgs, ... }:
+let
+  # credit to benley: https://github.com/benley/dotfiles/commit/325748c3a8553d55c9fab08654a77b252aa0fde7
+  patched_ssdt = pkgs.stdenv.mkDerivation {
+    name = "patched_ssdt";
+    src = ./.;
+    buildInputs = [ pkgs.libarchive ];
+    installPhase = ''
+      mkdir -p kernel/firmware/acpi
+      cp ${./ssdt6.aml} kernel/firmware/acpi/ssdt6.aml
+      mkdir -p $out
+      echo kernel/firmware/acpi/ssdt6.aml | bsdcpio -v -o -H newc -R 0:0 > $out/lenotrolli-ssdt.img
+    '';
+  };
+in
+
+{
+  boot.kernelParams = [ "mem_sleep_default=deep" ];
+  boot.initrd.prepend = [ "${patched_ssdt}/lenotrolli-ssdt.img" ];
+}