During a two-month period, dadada contributed to both the NixOS/nixpkgs and helix-editor/helix repositories, focusing on targeted improvements in configuration management and language tooling. In NixOS/nixpkgs, dadada enhanced repository governance by cleaning up maintainer metadata, specifically removing outdated PGP key information to align with current security policies and reduce misattribution risks. Shifting to helix-editor/helix, dadada implemented Picat language support by defining grammar and syntax highlighting, expanding the editor’s multi-language capabilities. These contributions leveraged skills in Nix, Scheme, and TOML, demonstrating a methodical approach to both repository hygiene and developer experience, with work characterized by precision and clear scope.