Sarah Hutchins developed an automated nightly regression testing workflow for the wireapp/wire-webapp repository, focusing on early detection of regressions in critical user flows. She designed a GitHub Actions pipeline that checks out the repository, sets up the Node.js environment, installs dependencies, and runs Playwright end-to-end tests tagged for regression. The workflow securely generates environment files using 1Password secrets and uploads test reports as artifacts for traceability. By leveraging Shell and YAML for workflow orchestration, Sarah improved CI reliability and test coverage. Her work addressed environment management and secure test data handling, providing a robust foundation for ongoing quality assurance.