Contributed a comprehensive documentation update for the PX4/PX4-Autopilot repository, focusing on the Flight Controller SIH module. The work centered on enhancing Markdown-based technical documentation to clarify setup instructions, supported airframes, and operational guidelines for embedded systems hardware. By providing detailed, structured content, the update aimed to streamline onboarding for both developers and operators while reducing ambiguity and support overhead across the team. The approach emphasized technical writing best practices, ensuring that hardware changes were accurately reflected and easily understood. No bug fixes were addressed during this period, as the primary focus remained on delivering high-value documentation improvements.