blah

modules/nixos/niri.nix

@@ -8,6 +8,24 @@ in {
 
   config = lib.mkIf cfg.enable {
     programs.niri.enable = true;
+    
+    # Necessary for e.g. screensharing.
+    xdg.portal = {
+      enable = true;
+      # See https://github.com/YaLTeR/niri/wiki/Important-Software#portals.
+      # Niri's NixOS module appears to automatically bring in
+      # xdg-desktop-portal-gnome and gnome-keyring.
+      extraPortals = [
+        pkgs.xdg-desktop-portal-gtk
+        pkgs.xdg-desktop-portal-wlr
+      ];
+      xdgOpenUsePortal = true;
+      config.preferred = {
+        default = [ "gtk" ];
+        "org.freedesktop.impl.portal.Screenshot" = [ "wlr" ];
+        "org.freedesktop.impl.portal.ScreenCast" = [ "wlr" ];
+      };
+    };
   };
 }