One of the biggest challenges I have faced when developing for the HTC Vive is the complexity of the hardware setup. The Vive requires a PC with a powerful graphics card, a base station, and two controllers. This makes it difficult to quickly deploy and test applications, as the entire setup needs to be completed before the Vive can be used. Additionally, the Vive’s tracking system can be finicky and unreliable, which can lead to unexpected errors and glitches. Finally, the Vive’s controllers are not as ergonomic as those of other headsets, which can lead to user discomfort and fatigue.