Worked on developer documentation and localization for Mattermost projects over a two-month period, focusing on practical improvements to user experience and workflow accuracy. Updated the mmctl user creation command in the mattermost/mattermost-developer-documentation repository, aligning documentation with the actual CLI flag syntax to prevent user errors and reduce support needs. Contributed a Korean localization update to the mattermost/mattermost-mobile repository, increasing translation coverage to 83.4% and enhancing usability for Korean-speaking users. Employed skills in documentation, localization, and translation, using Markdown and Korean language expertise to ensure technical accuracy and readiness for broader adoption in both developer and end-user contexts.