João Thallis contributed to configuration and dependency management across two repositories, focusing on reliability and maintainability. For software-mansion/live-debugger, he standardized Node.js version naming in the tool management system by updating the .tool-versions file, which improved automation reliability and reduced onboarding friction. In enola-dev/enola, João addressed Apple platform build stability by upgrading the Bazel apple_support dependency and refreshing the lockfile, reducing build failures and enhancing reproducibility across CI and local environments. His work demonstrated proficiency with Bazel, Shell, and Starlark, applying disciplined versioning and configuration practices to solve concrete problems in cross-platform development workflows.