They have a third of the code after the rewrite:<p>&quot;Over the years, the original version of Lyft had ballooned to 75,000 lines of code. By the time the company was done recreating it in Swift, they had something that performed the same tasks in less than a third of that.&quot;<p>I&#x27;d say that it&#x27;s a bit unfair to rip on a couple software developers as distracting the entire company.