Worked on the Submitty/Submitty repository to enhance the signup flow by addressing a bug where non-sensitive form fields were cleared after validation errors. Implemented a server-side persistence mechanism using PHP and session storage to retain user input across validation redirects, while ensuring that passwords and confirmations were never stored or repopulated for security reasons. Updated Cypress end-to-end tests to verify that data persisted correctly throughout the signup process. This change improved the reliability and usability of the self-account creation path, reduced user friction, and ensured comprehensive test coverage and PHP lint compliance in preparation for continuous integration workflows.