niri: allow screensharing

modules/desktop.nix

@@ -4,6 +4,19 @@
 
   programs.ydotool.enable = true;
 
+  xdg.portal = {
+    enable = true;
+    extraPortals = [
+      pkgs.xdg-desktop-portal-gnome
+    ];
+    config.common.default = "*";
+  };
+
+  services.dbus = {
+    # implementation = "broker";
+    # packages = [ pkgs.gcr ];
+  };
+
   # the status bar needs upower to show battery status
   services.upower.enable = true;
 
@@ -14,6 +27,8 @@
     pkgs.libnotify
     pkgs.wdisplays
     pkgs.nsxiv
+    pkgs.xdg-desktop-portal
+    pkgs.xdg-desktop-portal-gnome
 
     pkgs.niphas-bar
     pkgs.niphas-file-browser