In June 2025, Angel Olleb focused on improving the user experience in the stackrox/stackrox repository by addressing a validation issue in the Network Policy Simulator Side Panel. Angel implemented a front-end fix using TypeScript and JavaScript to ensure that the file upload component correctly accepted both .yaml and .yml extensions, preventing valid YAML configuration files from being rejected. This adjustment involved refining the UI validation logic to accommodate common YAML file naming conventions. While the work centered on a single bug fix rather than new features, it demonstrated careful attention to detail in front-end development and user interface reliability.