During March 2026, Daniel Black developed a multi-architecture Docker CI runtime stage for the tier4/scenario_simulator_v2 repository, focusing on enabling headless simulations for storage-constrained devices. He updated the CI/CD workflow using YAML and Docker to build and publish a dedicated runtime image that excludes desktop components, such as rviz, allowing simulations to run efficiently without unnecessary overhead. This approach addressed the need for lightweight simulation environments in resource-limited contexts. Daniel’s work demonstrated depth in DevOps and CI/CD practices, delivering a targeted solution that improved the repository’s flexibility for diverse deployment scenarios without introducing new bugs during the period.