In November 2025, Rohovskoi enhanced the Effect-TS/effect repository by developing new scalar types and refining scalar configuration within the HttpApiScalar module. Focusing on API development and backend engineering, he used TypeScript to address integration challenges and improve downstream compatibility. His work involved stabilizing scalar type handling, which resulted in more robust API schemas and simplified integration for API consumers. By refactoring and adding targeted tests, Rohovskoi improved the maintainability and flexibility of scalar logic. The depth of his contribution is reflected in the targeted feature delivery, which reduced friction in the API ecosystem and strengthened overall code quality.