Building a video app requires careful consideration of several key factors, including application tech stack and infrastructure. Organizations must decide whether to build their own platform or use an API, considering the level of customization required, infrastructure costs, and operational support needs. If building an in-house solution is not feasible, a SaaS offering like Twilio can provide scalable solutions with easy integrations. After launching the app, day two concerns such as observability, dashboards, and long-term storage considerations must be addressed. The integration of new technologies, including performance optimization, quality improvement, and emerging features like machine learning guided noise cancellation and augmented reality, also plays a crucial role in creating a compelling video experience. By understanding these technical and implementation concerns, businesses can build the best video communication experience for their users.