1. SQLite isn&#x27;t heavy. There are probably even lighter-weight relational solutions, but I haven&#x27;t needed one, so I haven&#x27;t looked.<p>2. Even among non-relational document storage solutions, Mongo has a poor reputation. As someone else says elsewhere in the comments, it&#x27;s hard to trust a team that let so many ridiculously dangerous bugs (and a basically unreliable design) out into production for so long.