Tiesjan contributed targeted service configuration and build system improvements across the influxdata/homebrew-core and gittools-bot/homebrew-core repositories. In C and Ruby, he configured the Olad service for the Ola formula, specifying run commands and error log paths while disabling the HTTP quit feature to enhance reliability and observability. He also modernized the lsdvd build pipeline by resolving Clang compatibility issues, migrating to a git-based source workflow, and updating dependency management using autoconf, automake, and pkg-config. His work focused on deployment stability, maintainability, and cross-platform compatibility, demonstrating depth in DevOps, system administration, and build automation within Homebrew environments.