Worked on enhancing Mattermost Mobile by delivering a Serbian localization update in the mattermost/mattermost-mobile repository. Focused on translating 41 out of 1,399 strings using Weblate, which increased Serbian language coverage from zero to 2.9 percent and improved accessibility for Serbian-speaking users. Utilized XML for translation management and applied localization and translation skills to establish a workflow that supports incremental language updates. While no bugs were fixed during this period, the work laid the foundation for broader language support and smoother onboarding for new users in targeted markets, setting the stage for future improvements in internationalization efforts.