How to Read GitHub Signals for Startup Investing

GitHub commit velocity – measured as the rate of change in 14-day commit counts – is the earliest publicly available signal of startup momentum. When a startup's engineering acceleration doubles in a two-week window, it typically precedes a fundraise announcement by three to six weeks. This guide covers the four signal types (hiring burst, infrastructure buildout, deploy spike, framework migration), what to ignore, and a practical workflow for turning GitHub data into actionable deal flow.