What a read.

"Tiger Style", the TigerBeetle style guide: github.com/tigerbeetle/ti…

"TigerBeetle's coding style is evolving. A collective give-and-take at the intersection of engineering and art. Numbers and human intuition. Reason and experience. First principles and knowledge."

The Safety section is super interesting: github.com/tigerbeetle/ti…

Also this is probably the most concise explanation of the "fail fast" principle that I've ever read.