I'd like to mention that CouchDB is really useful for one reason - a very robust sync story with clients, and a javascript version called PouchDB that can run o

I'd like to mention that CouchDB is really useful for one reason - a very robust sync story with clients, and a javascript version called PouchDB that can run on the browser and do bidirectional sync with remote Couch instances. This can be done with sqlite by jumping through a few extra hoops, and now with in-browser WASM postgres, there as well with a few more hoops, but the Couch -> Pouch story is easy and robust.