Not bad article, but intro deeply confuses the issue. If you want fast builds for your org, use a build server farm that is much faster than the fastest workstation, and sma incremental builds locally or on your cloud desktop.
A local UX machine (15" Mac not built in the Dark Ages of 2016-2020, + desk monitor, good for 5+ years) with a FUSE mounted remote storage and a build farm is a great combo.