During December 2025, Pierre Augier developed two features focused on improving developer workflows and environment reproducibility. In the prefix-dev/pixi repository, he enhanced the command-line interface by adding a concise -m alias for manifest_path, streamlining manifest specification and accelerating user operations. For conda-forge/staged-recipes, Pierre introduced the install-locked-env package, which standardizes the installation of locked Python environments with explicit dependency and testing metadata. His work leveraged Python, Rust, and YAML, emphasizing robust dependency and package management. By coordinating changes across repositories, Pierre established a repeatable release pattern, delivering stable, user-focused improvements without introducing regressions or reported bugs.