> directory tree is not as easy to view and edit as JSON.
tree path/to
cat path/to/key
echo "1" > path/to/key
But my point is that you're not using the file system as a database. You're using it as an index, and haven't considered about multiple readers/writers to those individual JSON files that are doing the real work as databases. It's kind of like writing JSON into a SQL table. You can do it, but probably not to store important data within that JSON that always needs to be queried and ser/deserialized for any kind of read or write. If you need that, you probably want NoSQL.
duped|2 years ago