Design a system for an Alexa-enabled Peloton. Define the APIs, system architecture, and explain the various components.

Focus on outlining a clear system architecture that integrates Alexa with Peloton's existing infrastructure. Start by identifying the key components, such as the Alexa Skill, the Peloton bike, and any backend services required for data processing and user interaction. Define the APIs needed for communication between these components, including commands for starting workouts, tracking progress, and providing feedback. Consider user experience aspects, such as voice commands and responses, and how they enhance the Peloton experience. Finally, discuss any security and data privacy measures that should be implemented to protect user information.