final installed version inshallah

configuration.nix

@@ -18,16 +18,17 @@
 
   networking.hostName = "tnix"; # Define your hostname.
 
-  # hardware.firmware = [
-  #   (pkgs.stdenvNoCC.mkDerivation (final: {
-  #     name = "brcm-firmware";
-  #     src = "./firmware/brcm";
-  #     installPhase = ''
-  #       mkdir -p $out/lib/firmware/brcm
-  #       cp ${final.src}/* "$out/lib/firmware/brcm"
-  #     '';
-  #   }))
-  # ];
+  hardware.firmware = [
+    (pkgs.stdenvNoCC.mkDerivation (final: {
+      name = "brcm-firmware";
+      src = "./firmware/brcm";
+      phases = [ "installPhase" ];
+      installPhase = ''
+        mkdir -p $out/lib/firmware/brcm
+        cp -r ./. "$out/lib/firmware/brcm"
+      '';
+    }))
+  ];
 
   # Configure network connections interactively with nmcli or nmtui.
   networking.networkmanager.enable = true;