Explore the challenges and opportunities of building Free and Open Source Software (FOSS) on ARM64 and ppc64le architectures in this informative conference talk. Learn about the importance of cross-platform development, CICD pipelines, and the history of ppc64 architecture. Discover how the OSU Open Source Lab and Imperial Computing are contributing to the open source community by providing access to these platforms. Gain insights into platform overviews, guest OS support, and technical challenges faced when working with ARM64 and ppc64le. Address frequently asked questions about ARM64 support, funding, power consumption, and firmware. Understand the goals of open source labs and how projects can gain access to these resources. Delve into VM issues and other technical challenges encountered in this evolving landscape of hardware architectures for FOSS development.