In March 2025, Matz focused on maintaining and improving CI stability for the rs6000 target within the rust-lang/gcc repository. He addressed an autobuilder complaint by regenerating the rs6000/rs6000.opt.urls file and adding a new entry for 'msplit-patch-nops', ensuring that CI inputs aligned with updated endpoints. This work, primarily in C and involving build systems and documentation, enhanced the reliability of automated builds and reduced flakiness in the feedback loop. By updating documentation to capture these changes, Matz ensured traceability and reproducibility, demonstrating a methodical approach to infrastructure maintenance and targeted problem-solving within the build process.