base/gui-programs.nix

@@ -69,7 +69,51 @@ in {
       inherit (pkgs.libsForQt5) okular;
     };
 
-    networking.networkmanager.enable = true;
+    networking.networkmanager = {
+      enable = true;
+
+      dispatcherScripts = [
+        {
+          source = let
+            grep = "${pkgs.gnugrep}/bin/grep";
+            nmcli = "${pkgs.networkmanager}/bin/nmcli";
+          in
+            pkgs.writeShellScript "disable_wifi_on_ethernet" ''
+              export LC_ALL=C
+              date >> /tmp/disable_wifi_on_ethernet.log
+              echo START "$@" >> /tmp/disable_wifi_on_ethernet.log
+
+              beginswith() { case $2 in "$1"*) true;; *) false;; esac; }
+
+              is_ethernet_interface ()
+              {
+                  local type="$(${nmcli} dev show "$1" | grep 'GENERAL\.TYPE:' | awk '{ print $2 }')"
+                  test "$type" = "ethernet" || beginswith enp "$1"
+              }
+
+              hotspot_enabled ()
+              {
+                ${nmcli} dev | ${grep} -q "hotspot"
+              }
+
+              if is_ethernet_interface "$1" && ! hotspot_enabled; then
+                echo "change in ethernet and not in hotspot mode" >> /tmp/disable_wifi_on_ethernet.log
+                if [ "$2" = "up" ]; then
+                    echo "turning wifi off" >> /tmp/disable_wifi_on_ethernet.log
+                    nmcli radio wifi off
+                fi
+
+                if [ "$2" = "down" ]; then
+                    echo "turning wifi on" >> /tmp/disable_wifi_on_ethernet.log
+                    nmcli radio wifi on
+                fi
+              fi
+              echo END "$@" >> /tmp/disable_wifi_on_ethernet.log
+            '';
+          type = "basic";
+        }
+      ];
+    };
     programs.nm-applet.enable = true;
     programs.steam.enable = true;
 

hosts/talos/default.nix

@@ -51,6 +51,7 @@
   # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
 
   programs = {
+    dconf.enable = true;
     light.enable = true;
   };
   services = {