During January 2026, Hannes Nevalainen focused on enhancing the documentation quality of the gleam-lang/stdlib core library API. He systematically addressed documentation inconsistencies and errors across modules such as list.gleam, string.slice, and Set.delete, applying precise commit-level changes to improve clarity and reduce user confusion. Working exclusively with Gleam, Hannes emphasized code correctness and thorough code commenting, ensuring that public documentation accurately reflected expected usage. His efforts supported better developer onboarding and safer library adoption by correcting typos, syntax issues, and variable naming inconsistencies. The work demonstrated careful attention to detail and contributed to more reliable and accessible documentation standards.