During December 2025, 23bit129 contributed to the freeCodeCamp/freeCodeCamp repository by improving curriculum documentation to enhance learner accuracy and reduce confusion. They focused on correcting terminology in the regular expressions section, updating the term 'carrot' to the correct 'caret', and clarified the reference to the remainders array in the decimal-to-binary conversion documentation. These changes were implemented using Markdown and Git, with clear, PR-style commit messages and co-authorship attribution. The work demonstrated attention to detail in curriculum development and technical writing, resulting in more precise learning materials and better alignment with domain standards, though the scope was limited to documentation fixes.