From spreadsheet to system
APFIN began as a set of internal scripts built to answer a simple question: what is actually happening with a position right now, without waiting for a dashboard to catch up or a report to be compiled by hand.
Those scripts got passed around, rebuilt, and eventually turned into something that could be used outside the small group that made them. The core requirement never changed — show the state of things clearly, update it constantly, and don't decorate it with anything that isn't information.
What exists today is a direct descendant of that original tool. The interface has changed. The underlying discipline has not.