The author would be excited to learn that CouchDB solves this problem since 20 years. The use case the article describes is exactly the idea behind CouchDB: a

The author would be excited to learn that CouchDB solves this problem since 20 years. The use case the article describes is exactly the idea behind CouchDB: a database that is at the same time the server, and that's made to be synced with the client. You can even put your frontend code into it and it will happily serve it (aka CouchApp). https://couchdb.apache.org https://couchdb.apache.org