upd

modules/apps/nextcloud/default.nix

@@ -10,6 +10,7 @@ in
     virtualisation.oci-containers.containers."${cfg.name}" = {
       autoStart = cfg.autoStart;
       image = cfg.image;
+      extraOptions = [ "--device=nvidia.com/gpu=0" ];
       ports = [
         "${cfg.httpPort}:80"
         "${cfg.httpsPort}:443"