Hoishinxii modernized the TypeScript SDK in the Apicurio/apicurio-registry repository by enabling native ESM compatibility and updating import paths to use the .js extension. This work focused on improving module resolution reliability across modern JavaScript bundlers and Node.js environments. By addressing tsconfig compatibility for ESM, Hoishinxii ensured that SDK consumers would not encounter import-time failures, streamlining integration for downstream projects. The implementation leveraged TypeScript and ESM expertise, with careful attention to interoperability and runtime stability. Although the work was limited to a single feature over one month, it addressed a nuanced compatibility challenge and improved the SDK’s usability in contemporary JavaScript projects.