In May 2025, Lei Jingqiu focused on enhancing localization for the protyagov/martspec repository by delivering a targeted Chinese translation update for the 'Why Body Mass' section. Working primarily with JSON, Lei improved the accuracy and clarity of technical content for Chinese-speaking users, addressing potential misinterpretations in the original translation. The update was implemented as a single, review-ready commit, reflecting a disciplined and efficient workflow. Lei’s work demonstrated proficiency in internationalization and localization, ensuring that the user experience for non-English speakers was thoughtfully addressed. The project scope was narrow but executed with attention to detail and technical precision.