In May 2025, Sungchan Lee contributed to the fastapi/fastapi repository by delivering a comprehensive Korean translation of the virtual environments documentation. Focusing on Markdown and leveraging skills in documentation and translation, Sungchan aligned the new Korean content closely with the original English version to ensure consistency across locales. The work covered the creation, activation, and management of Python virtual environments, detailing the use of tools such as venv and uv for environment setup and package installation. This enhancement improved accessibility for Korean-speaking developers and supported the project’s localization goals, reducing onboarding friction and expanding the documentation’s reach and usability.