design documents within the repo itself (under docs/RFCs [0]) actually do well to capture some of the past implementation details/rationale and future direction

design documents within the repo itself (under docs/RFCs [0]) actually do well to capture some of the past implementation details/rationale and future directions CockroachDB is planning to take. in my (very biased) opinion they've gone out of their way to keep everything as transparent as possible. [0] - https://github.com/cockroachdb/cockroach/tree/master/docs/RFCS https://github.com/cockroachdb/cockroach/tree/master/docs/RF...