During a two-month period, James Archer enhanced the build and integration infrastructure for the au-ts/lionsos and au-ts/sddf repositories, focusing on modularity, maintainability, and network capability. He refactored FAT and MicroPython build processes using Makefile and C, centralizing configuration and reducing duplication. In au-ts/sddf, James stabilized lwIP networking integration and improved header management, introducing #pragma once and standard headers to boost reliability and build speed. He also addressed MUSL build integration, standardizing workflows and clarifying dependencies. These efforts resulted in more deterministic builds, streamlined CI, and improved cross-repository development, demonstrating depth in build systems and embedded network programming.