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" ];
+      };
+    };
   };
 }
 

modules/nixos/qemu.nix

@@ -0,0 +1,29 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let cfg = config.sydnix.qemu;
+in {
+  options.sydnix.qemu = {
+    enable = mkEnableOption "Qemu";
+  };
+
+  config = mkIf cfg.enable
+    (let
+      # Necessary for UEFI boot with libvirt.
+      qemu-uefi = pkgs.writeShellScriptBin "qemu-system-x86_64-uefi" ''
+        qemu-system-x86_64 \
+          -bios ${pkgs.OVMF.fd}/FV/OVMF.fd \
+          "$@"
+      '';
+    in {
+      programs.virt-manager.enable = true;
+
+      environment.systemPackages = [
+        pkgs.virtiofsd
+        qemu-uefi
+      ];
+
+      virtualisation.libvirtd.enable = true;
+    });
+}

modules/nixos/stylix.nix

@@ -1,4 +1,3 @@
-
 { config, lib, pkgs, ... }:
 
 let