Worked on the PX4/PX4-Autopilot repository to enhance the simulation pipeline by improving dependency management and build reliability. Focused on updating the PX4 simulation build to utilize the gz-harmonic meta-package for SITL debs, ensuring that simulation dependencies remain current and reducing the risk of stale packages. Added an apt-list refresh step in the Dockerfile prior to installing px4-gazebo, which streamlined the container build process and improved simulation stability. Leveraged skills in CMake, containerization, and Linux packaging, applying these technologies to modernize the build process and contribute to the ongoing maintainability of the PX4 simulation environment.