During January 2025, David enhanced authentication security and documentation for the actualbudget/actual and actualbudget/docs repositories. He implemented proxy trust-based authentication, refining login method selection and restricting header-based authentication to trusted IP addresses, thereby reducing misconfiguration risks in proxy-operated deployments. Using TypeScript and JavaScript, David aligned backend features with updated documentation, introducing OpenID support and clearer configuration guidance. His work included comprehensive updates to Markdown-based docs, detailing new authentication proxy configurations and login method options. This focused approach improved network security and streamlined onboarding for operators, demonstrating depth in backend development, configuration management, and technical documentation within a short timeframe.