[bravura]

Wait, you found it too difficult and time-consuming to install software, so instead you wrote software?

[kennywinker]

I think he mains maintaining a mongodb installation, which is not trivial.

Same reason people use SQLite instead of MySQL or Postgres. Don't want to have to deal with keeping a database server up.

[StavrosK]

Exactly. This way, I get my schemaless datastore without leaving the stdlib, and it doesn't eat my data at unsuspecting times.