Worked on stabilizing TypeScript module resolution within the Next.js integration for the posthog-js repository, focusing on resolving a persistent configuration issue. Addressed a bug that prevented TypeScript from correctly locating and resolving modules in Next.js projects, which previously led to build and runtime failures related to module paths. The solution involved targeted adjustments to the TypeScript configuration, ensuring reliable module resolution and smoother build processes for downstream consumers. By improving the configuration and leveraging skills in TypeScript and Next.js, this work reduced the time developers spend debugging module-path issues and enhanced the overall reliability of the build pipeline.