During September 2025, Lukas Lalinsky enhanced Zig language support in the helix-editor/helix repository by developing a feature for function call argument matching within the Zig grammar. He updated the language grammar definitions and refined text object recognition using Scheme (scm), enabling the editor to accurately identify and manipulate function call arguments in Zig code. This work improved code navigation and refactoring capabilities for Zig developers by making argument boundaries more accessible within the editor. Lukas’s contribution focused on language grammar and text object definition, delivering a targeted, well-scoped feature that addressed a specific need for more reliable Zig code analysis.