With the launch of Apple Vision Pro, a full ecosystem is emerging in search of the killer app - an application that demonstrates the technology's unique strengths and seamlessly integrates into our daily lives. This mirrors what occurred with other hardware, such as smart devices nearly two decades ago. With the introduction of any new technology, questions inevitably arise: How can we develop apps effectively? Is there an established ecosystem of SDKs or libraries available for use? Which tools are most suitable? This session will delve into the best practices for visionOS during this initial development stage and propose a set of guidelines to effectively develop apps for Vision Pro. We will also cover common beginner challenges that everyone has to overcome.