Delivered complete Sinhala localization for the niccokunzmann/open-web-calendar project, focusing on expanding accessibility for Sinhala-speaking users. Worked through Weblate to translate the entire user interface, including months, days, labels, and the About Page, achieving 100% coverage across 71 strings. Utilized YAML for translation files and applied skills in internationalization, localization, and web development to ensure seamless integration. Established a repeatable workflow for ongoing updates, resulting in a stable translation pipeline with no major bugs reported. The work improved user onboarding and engagement by removing language barriers and set a foundation for sustainable, future localization efforts within the repository.