Questions

1. What if I'd like to make a MongoDB L1/L2 drivers.
2. Any feedback on each of the options?

Possible directions.

Option 1: Easy way would be to add a dependency to the MongoDB library in this repository, but isn’t this going to be an overhead for people not meaning to use it.

Option 2:
Have a separate project (repository) that will integrate both LCache and MongoDB and have the dependencies only there. I prefer this one - seems more decoupled.