Leon Loov contributed to the Sustainable-Action-Foundation/eco-planner repository by implementing a domain allowlist feature that enables the application to recognize and process requests from Tranås Municipality. He focused on configuration management, updating the system to support the tranas.se domain, which facilitates smoother external collaboration and governance. Working primarily with TypeScript, Leon ensured that the configuration changes were robust and aligned with the project’s requirements. Although the scope of work was limited to a single feature over one month, the solution addressed a clear business need by improving access control and interoperability for municipal partners, demonstrating careful attention to integration details.