During May 2025, this developer enhanced the projectdiscovery/katana repository by delivering a configurable Parser that supports per-instance options, replacing the previous global parser state. This refactoring introduced a new Parser type in Go, improving modularity and reducing circular dependencies within the codebase. The work focused on dependency management and software design, enabling isolated configuration for each parser instance and laying the foundation for more targeted parser configurations across different crawlers. Additionally, the developer improved code readability by standardizing import order in crawler_options.go, aligning with formatting standards and contributing to overall maintainability without altering existing functionality or fixing major bugs.