Worked on the Idein/actcast-app-examples repository to enhance documentation supporting cross-architecture Docker builds. Focused on improving the onboarding process and reducing build failures, the contribution introduced detailed instructions for enabling QEMU and running multiarch/qemu-user-static prior to building custom Docker images. This update clarified the prerequisites necessary for successful multi-architecture image creation, ensuring developers can reliably set up their build environments. The work leveraged expertise in build systems and Docker, with all documentation authored in Markdown. The depth of the contribution lies in addressing a common pain point for multi-architecture workflows, providing clear, actionable guidance for future development efforts.