From the article: "We propose ‘buying’, not building, the core of such a solution, and wrapping it in idiomatic libraries that we can use on all platforms. We

From the article: "We propose ‘buying’, not building, the core of such a solution, and wrapping it in idiomatic libraries that we can use on all platforms. We propose that LMDB is a suitable core (see Appendix A for options considered): it is compact (32KB of object code), well-tested, professionally maintained, reliable, portable, scales well, and is exceptionally fast for our kinds of load. We have engineers at Mozilla with prior experience with LMDB, and their feedback is entirely positive."