Describing this as a clone is ok, if it is educative project, like all those “twitter clone” every framework has in getting started.
If this intends to become a real project, not only notion.clone is a bad name, it is also clear trademark violation and will be shut down very quickly.
If this intends to become a real project, not only notion.clone is a bad name, it is also clear trademark violation and will be shut down very quickly.