Developed and delivered a customizable Matrix notification template feature for the louislam/uptime-kuma repository, enabling users to personalize alert messages for improved clarity and response. The work involved building new front end UI components using Vue and JavaScript, allowing users to enable template usage and input custom message formats directly within the application. Localization updates were implemented to ensure template features are accessible across supported languages, demonstrating attention to internationalization. The contribution focused on feature development rather than bug fixes, reflecting a targeted approach to enhancing user experience and collaboration through tailored notifications, with cross-functional input on both UI and i18n aspects.