Explore the challenges and solutions in mixed reality development through a 20-minute conference talk from Devoxx. Delve into the complexities of creating productive solutions for devices like Microsoft Hololens, including hologram placement, interaction design, and intuitive user experiences. Learn from Sébastien's insights based on a real-world case study from Swiss Post, uncovering the most significant hurdles in mixed reality development and strategies to overcome them. Gain valuable knowledge about this cutting-edge technology and its practical applications in the business world.