architecture The Bus Factor Test: A Quick Heuristic for Finding Your Team’s Hidden Single Points of Failure josedacruz, August 11, 2026August 11, 2026 TL;DR: The “bus factor” is the number of people who could disappear from your team before a system stops working — and for most teams it’s uncomfortably close to one. Once you find a low bus factor, the real decision isn’t whether to fix it, it’s how: documentation works well… Continue Reading