Thanks so much for doing this! I really like to read about interesting engineering problems that are encountered at scale and the way engineers think about them

Thanks so much for doing this! I really like to read about interesting engineering problems that are encountered at scale and the way engineers think about them and come up with solutions to solve them. Probably tangential, but wanted to know what your thoughts are about the frequent case we often see where the interesting designs are made public without the actual implementation. e.g. the Map-Reduce paper-> Apache Hadoop. Dynamo-> Cassandra (and a few others), Spanner -> CockroachDB, Borg-> K8s etc. Having worked at corporations most of my life, I know that internal systems often have a lot of internal dependencies which makes it really hard to open source them easily; often a refactor is more expensive than writing from scratch. I can see it both ways; just wondering as the author, what your perspectives might be :).