Ettoh contributed to the helix-editor/helix repository by enhancing Typst syntax highlighting within the Helix text editor. Focusing on language parsing and syntax highlighting, Ettoh reorganized the query definitions for function calls, method calls, tags, and comments, resulting in more accurate and consistent highlighting for Typst files. The work involved editing scm query files and refining the text editor’s configuration to address user-visible errors, specifically fixing function highlight queries to resolve a known issue. This targeted feature improved the overall user experience and demonstrated a solid understanding of query systems and open-source collaboration, though the scope was limited to one feature.