lol

overlays/linux-cachyos/default.nix

@@ -50,6 +50,8 @@ in
     linuxPackages_cachyos-lts = cachyosPackages.cachyos-lts;
     # Steamdeck
     linuxPackages_cachyos-deckify = cachyosPackages.cachyos-deckify;
+    # Asahi (Apple Silicon)
+    linuxPackages_cachyos-asahi = cachyosPackages.cachyos-asahi;
 
     # Clang Kernels
     # Latest
@@ -73,5 +75,7 @@ in
     linuxPackages_cachyos-rc-lto-znver4 = cachyosPackages.cachyos-rc-lto-znver4;
     # Steamdeck
     linuxPackages_cachyos-deckify-lto = cachyosPackages.cachyos-deckify-lto;
+    # Asahi (Apple Silicon)
+    linuxPackages_cachyos-asahi-lto = cachyosPackages.cachyos-asahi-lto;
   };
 }

packages/linux-cachyos/default.nix

@@ -52,6 +52,7 @@ let
   ltsVersions = mkVersions (selectVariant versionSpec "lts" null);
   rcVersions = mkVersions (selectVariant versionSpec "rc" null);
   hardenedVersions = mkVersions (selectVariant versionSpec "hardened" null);
+  asahiVersions = mkVersions (selectVariant versionSpec "asahi" null);
 
   # ######################################################
   #                   Base LTO Config                    #
@@ -217,6 +218,31 @@ let
     withNTSync = false;
     withHDR = false;
   };
+
+  # ######################################################
+  #                   Base Asahi Config                  #
+  # ######################################################
+
+  asahiAttrs = {
+    versions = asahiVersions;
+
+    # Asahi tracks the 6.18 series; use the LTS config base
+    taste = "linux-cachyos-asahi";
+
+    # Apple Silicon is aarch64-only; no x86 march tuning
+    mArch = null;
+
+    # NTSync and HDR are x86/display-stack features, not applicable here
+    withNTSync = false;
+    withHDR = false;
+
+    # Disable module building extras that don't apply to aarch64 targets
+    packagesExtend =
+      _kernel: _final: prev:
+      prev // { recurseForDerivations = false; };
+
+    description = "Linux EEVDF-BORE scheduler Kernel by CachyOS with Asahi Linux patches for Apple Silicon";
+  };
 in
 {
   inherit
@@ -277,6 +303,16 @@ in
     }
   );
 
+  # Asahi GCC
+  cachyos-asahi = mkCachyKernel (
+    gccKernelAttrs
+    // asahiAttrs
+    // {
+      pname = "cachyos-asahi";
+      configPath = ./config-nix/${arch}-linux/cachyos-lts.${arch}-linux.nix;
+    }
+  );
+
   # Deckify GCC
   cachyos-deckify = mkCachyKernel (
     gccKernelAttrs
@@ -346,6 +382,16 @@ in
     }
   );
 
+  # Asahi LTO
+  cachyos-asahi-lto = mkCachyKernel (
+    ltoKernelAttrs
+    // asahiAttrs
+    // {
+      pname = "cachyos-asahi-lto";
+      configPath = ./config-nix/${arch}-linux/cachyos-lts-lto.${arch}-linux.nix;
+    }
+  );
+
   # RC LTO
   cachyos-rc-lto = mkCachyKernel (
     ltoKernelAttrs

packages/linux-cachyos/prepare.nix

@@ -9,7 +9,13 @@
   commonMakeFlags,
 }:
 let
-  version = if stdenv.isAarch64 then "6.12.47" else cachyConfig.versions.linux.version;
+  version =
+    if cachyConfig.taste == "linux-cachyos-asahi" then
+      cachyConfig.versions.linux.version
+    else if stdenv.isAarch64 then
+      "6.12.47"
+    else
+      cachyConfig.versions.linux.version;
 
   majorMinor = lib.versions.majorMinor version;
 
@@ -26,7 +32,14 @@ let
   };
 
   src =
-    if stdenv.isAarch64 then
+    if cachyConfig.taste == "linux-cachyos-asahi" then
+      fetchFromGitHub {
+        owner = cachyConfig.versions.linux.owner;
+        repo = cachyConfig.versions.linux.repo;
+        rev = cachyConfig.versions.linux.rev;
+        inherit (cachyConfig.versions.linux) hash;
+      }
+    else if stdenv.isAarch64 then
       let
         tag = "stable_20250916";
         hash = "sha256-Rjn+eWl5cLcc9wgjS3HYVaWM5eKMN3pPfPbsu+QGR/M=";
@@ -432,6 +445,10 @@ let
         "-d LATENCYTOP"
         "-d DEBUG_PREEMPT"
       ];
+  # Asahi uses the LTS config base since it tracks the same 6.18 kernel series
+  configTaste =
+    if cachyConfig.taste == "linux-cachyos-asahi" then "linux-cachyos-lts" else cachyConfig.taste;
+
 in
 stdenv.mkDerivation (finalAttrs: {
   inherit src patches;
@@ -461,7 +478,7 @@ stdenv.mkDerivation (finalAttrs: {
     runHook preBuild
 
     echo ${cachyConfig.taste}
-    cp "${config-src}/${cachyConfig.taste}/config" ".config"
+    cp "${config-src}/${configTaste}/config" ".config"
     make $makeFlags olddefconfig
     patchShebangs scripts/config
     scripts/config ${lib.concatStringsSep " " pkgbuildConfig}

packages/linux-cachyos/version.json

@@ -31,6 +31,18 @@
     }
   },
   "variants": {
+    "asahi": {
+      "sources": {
+        "linux": {
+          "fetcher": "github",
+          "owner": "AsahiLinux",
+          "repo": "linux",
+          "version": "6.18.15",
+          "rev": "asahi-6.18.15-1",
+          "hash": "sha256-A+/tpsog/ku+ujqMSLB+AkrKoUWxYDpoPzC4ESkeqvA="
+        }
+      }
+    },
     "lts": {
       "sources": {
         "linux": {