profile/sway: enable seatd

machines/core/users.nix

@@ -17,6 +17,7 @@
       "libvirtd" # kvm control
       "networkmanager" # wireless configuration
       "podman" # usage of `podman` socket
+      "seat" # access to input devices
       "video" # screen control
       "wheel" # `sudo` for the user.
     ];

profiles/sway/default.nix

@@ -31,6 +31,8 @@ in
     environment.systemPackages = with pkgs; [ polkit_gnome ];
     environment.pathsToLink = [ "/libexec" ];
 
+    services.seatd.enable = true;
+
     programs = {
       foot.enable = true;
       light.enable = true;