Explore a comprehensive conference talk on creating reproducible multi-element system architectures for complex safety-critical systems using Linux, Xen, and Zephyr. Delve into the ELISA project's systems working group efforts to develop exemplary system architectures with step-by-step documentation for users of varying expertise levels. Learn about the benefits of open-source software in boosting system creation and understanding through rapid, iterative prototyping. Discover the importance of system SBOM and collaboration with other open-source projects. Gain insights into the challenges and opportunities of utilizing open-source projects for safety-critical workloads, and understand the focus areas of other ELISA working groups, including Linux Kernel, processes, tools, and use cases.