Zerodha is the largest stock broker in India. Over 1.5 million Zerodha clients contribute to over 15% of all retail order volumes in India daily by trading and investing with their platform.

The entire tech stack at Zerodha is backed by open source projects and libraries alike. This talk is about how FOSS has empowered Zerodha to build great products faster and better. FOSS has made it possible for a team of just over 20 developers to build what is today India's largest stock broker.