Add back nextcloud and try collabora

modules/system/services/server/nextcloud/nginx/default.nix

@@ -0,0 +1,18 @@
+{ lib, config, ... }:
+{
+  services.nginx.virtualHosts."cloud.${config.domains.p2}" = lib.mkIf config.services.nextcloud.enable {
+    enableACME = true;
+    addSSL = true;
+    locations."/" = {
+      proxyWebsockets = true;
+      extraConfig = ''
+        location /.well-known/carddav {
+          return 301 $scheme://$host/remote.php/dav;
+        }
+        location /.well-known/caldav {
+          return 301 $scheme://$host/remote.php/dav;
+        }
+     '';
+    };
+  };
+}