João Thallis contributed to configuration and dependency management across two repositories, focusing on automation reliability and platform stability. For software-mansion/live-debugger, he standardized Node.js version naming in the tool management system by updating the .tool-versions file, reducing ambiguity and improving onboarding for new developers. In enola-dev/enola, João addressed Apple platform build issues by upgrading the apple_support Bazel dependency and refreshing the lockfile, which enhanced reproducibility and reduced build failures in CI and local environments. His work demonstrated proficiency with Bazel, Shell, and Starlark, emphasizing disciplined versioning and configuration hygiene to support maintainable, stable engineering workflows.