Worked on the laravel/nightwatch repository to improve mail ingestion and notification handling, focusing on the accuracy of ingest counts and the reliability of the test suite. Addressed issues where emails generated by the Laravel Notification channel were incorrectly included in ingest metrics, refining the logic to ensure only relevant mailables are processed. Enhanced test coverage by adding targeted tests for markdown mailables and notification-related edge cases, using PHP and PHPUnit. Refactored test infrastructure to resolve class name collisions and updated Route usage, reducing test flakiness and improving maintainability. These changes resulted in more trustworthy metrics and clearer mail-related behavior in testing.