Made it work

modules/server/nextcloud.nix

@@ -0,0 +1,33 @@
+{ config, lib, pkgs, ... }:
+
+{
+	# Setting the filesystem for nextcloud
+	fileSystems."/mnt/nextcloudStorage" = {
+		device = "/dev/disk/by-label/nextcloud";
+		options = [
+			"users"
+		];
+	};
+
+	# Activating the nextcloud servce not optimized
+	environment.etc."nextcloud-admin-pass".text = "PWD";
+	services.nextcloud = {
+		enable = true;
+		home = "/mnt/nextcloudStorage";
+		package = pkgs.nextcloud30;
+		hostName = "cloud.hahn1.one";
+		settings = {
+			trusted_domains = ["misox"];
+		};
+		config = {
+			adminpassFile = "/etc/nextcloud-admin-pass";
+			dbtype = "sqlite";
+		};
+		extraApps = {inherit (config.services.nextcloud.package.packages.apps) richdocuments news contacts calendar tasks;};
+		extraAppsEnable = true;
+		https = true;
+		configureRedis = true;
+		maxUploadSize = "1G";
+	};
+}
+