During March 2025, Matz focused on maintaining and improving CI stability for the rs6000 target in 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 current endpoints. His work emphasized build system reliability and documentation, using C and build automation tools to enhance reproducibility and traceability. By updating documentation alongside technical changes, Matz reduced flaky builds and improved feedback loops. The depth of his contribution lay in targeted maintenance, prioritizing robust build processes over feature development during this period.