home/services/ollama: fix hardware check on darwin

Author: khaneliman

modules/home/services/ollama/default.nix

@@ -11,6 +11,7 @@ let
   cfg = config.${namespace}.services.ollama;
 
   amdCfg = osConfig.khanelinix.hardware.gpu.amd;
+  hasHardwareConfig = lib.hasAttr "hardware" osConfig.khanelinix;
 in
 {
   options.${namespace}.services.ollama = {
@@ -26,7 +27,7 @@ in
         lib.optionalAttrs cfg.enableDebug {
           OLLAMA_DEBUG = "1";
         }
-        // lib.optionalAttrs (amdCfg.enable && amdCfg.enableRocmSupport) {
+        // lib.optionalAttrs (hasHardwareConfig && amdCfg.enable && amdCfg.enableRocmSupport) {
           HCC_AMDGPU_TARGET = "gfx1100";
           HSA_OVERRIDE_GFX_VERSION = "11.0.0";
           AMD_LOG_LEVEL = lib.mkIf cfg.enableDebug "3";