DBMS's generally bring a couple of things: ACID Queries Unless you need either of these things then dumping onto the file system is fine. To ease your anxie

DBMS's generally bring a couple of things: ACID Queries Unless you need either of these things then dumping onto the file system is fine. To ease your anxiety you could always use SQLite (has JSON extensions) and simply writes to a file on the file-system (which means no DBMS server to run), this is only an option if access to SQLite is single threaded.