This is a very low bar for success. When you&#x27;re working with sensitive information or financial transactions, it isn&#x27;t just about &quot;working&quot;. If your code &quot;works&quot; but is impossible to reason about or untested, you&#x27;re asking for people later on to introduce bugs.<p>Code is not written in a vacuum. The hardest part, for three nines of software problems, is not just getting it to work. It&#x27;s architecture and building an engineering team that functions together. People are a major component of software development.