Contributed to both the helix-editor/helix and litestar-org/litestar repositories by delivering targeted feature enhancements over a two-month period. In helix-editor/helix, implemented QMV language support by configuring languages.toml and updating documentation, enabling syntax highlighting and editing for QMV files within the Helix editor. For litestar-org/litestar, enhanced the Template class to support empty template strings, allowing for more flexible and dynamic rendering scenarios while maintaining API compatibility. Work focused on backend development, editor configuration, and unit testing, utilizing Python, Markdown, and TOML. Each feature was delivered through a configuration-driven approach with synchronized documentation and thorough attention to developer experience.