Init support for acer chromebook cp713-1wn(with full audio support from https://github.com/ninelore/flake and https://github.com/WeirdTreeThing/chromebook-linux-audio

acer/chromebook/cp713-1wn/alsa-ucm-conf-cros.nix

@@ -0,0 +1,25 @@
+{ lib
+, alsa-ucm-conf
+, fetchFromGitHub
+}:
+
+alsa-ucm-conf.overrideAttrs (oldAttrs: {
+  wttsrc = fetchFromGitHub {
+    owner = "WeirdTreeThing";
+    repo = "alsa-ucm-conf-cros";
+    rev = "1908a457c7f2bf8b63264fe3b1e0522ea632ac5a";
+    hash = "sha256-h4qphJgXlEGMjpV4+llTaJeM3hoglmmgkXY8rOp+MAI=";
+  };
+
+  postInstall = ''
+    cp -rf $wttsrc/ucm2 $out/share/alsa/
+  '';
+
+  meta = oldAttrs.meta // {
+    platforms = [
+      "aarch64-linux"
+      "x86_64-linux"
+    ];
+  };
+})
+

acer/chromebook/cp713-1wn/default.nix

@@ -0,0 +1,18 @@
+{ lib, pkgs, ... }:
+
+let
+  alsa-ucm-conf-cros = pkgs.callPackage ./alsa-ucm-conf-cros.nix { };
+in {
+  imports = [
+  ../../../common/cpu/intel/kaby-lake
+  ../../../common/pc/laptop
+  ../../../common/hidpi.nix 
+  ];
+  boot.extraModprobeConfig = ''
+    options snd-intel-dspcfg dsp_driver=4
+    options snd-soc-avs ignore_fw_version=1
+    options snd-soc-avs obsolete_card_names=1
+  '';
+  environment.sessionVariables.ALSA_CONFIG_UCM2 = lib.mkDefault "${alsa-ucm-conf-cros}/share/alsa/ucm2";
+}
+

flake.nix

@@ -46,6 +46,7 @@
         in
         {
           acer-aspire-4810t = import ./acer/aspire/4810t;
+	  acer-chromebook-cp713-1wn = import ./acer/chromebook/cp713-1wn;
           airis-n990 = import ./airis/n990;
           aoostar-r1-n100 = import ./aoostar/r1/n100;
           apple-imac-14-2 = import ./apple/imac/14-2;