Worked on stabilizing build and packaging workflows in the tweag/nixpkgs and shellhub-io/shellhub repositories, focusing on dependency management and code correctness. Addressed build reliability by relaxing version pins in pyproject.toml for key tools, allowing for smoother updates and reducing conflicts in Nix-based build systems. In Go, resolved a FreeBSD-specific import path issue in ShellHub’s host utilities, aligning imports to prevent build and runtime errors without introducing API changes. Demonstrated expertise in Go, Nix, and package management, with a focus on maintainability and CI stability. All changes were targeted, reviewed, and merged to improve overall project robustness and developer experience.