doc: added documentation for the wifi driver which is not included

Author: KeyZox71

apple/macmini/6/README.md

@@ -0,0 +1,40 @@
+# macmini 6.1/6.2
+
+Everything should be working flawlessly **except** the wifi card which is not included in this config for performance and security reason.
+
+Here is the potential fix you can use for this :
+- enable the b43 driver (it work but wifi performance are terrible):
+```nix
+  boot = {
+    kernelModules = [
+      "b43"
+    ];
+    blacklistedKernelModules = [
+      "wl"
+      "bcma"
+    ];
+  };
+  networking.enableB43Firmware = true;
+```
+- enable the insecure broadcom_sta driver
+```nix
+  nixpkgs.config.allowInsecurePredicate =
+    pkg:
+    builtins.elem (lib.getName pkg) [
+      "broadcom-sta" # aka “wl”
+    ];
+  boot = {
+    kernelModules = [
+      "wl"
+    ];
+    blacklistedKernelModules = [
+      "b43"
+      "bcma"
+    ];
+    extraModulePackages = [
+      # install broadcom driver for macos wifi
+      # note : the user will need to add it to `permittedInsecurePackages`
+      config.boot.kernelPackages.broadcom_sta
+    ];
+  };
+```