During January 2026, Varmac focused on improving the stability and security of the vercel/turborepo repository, specifically within the with-nestcli example. He addressed deprecation warnings by updating outdated NestJS dependencies and enhanced security by tightening how child-process arguments are handled in build and service generation scripts. Using TypeScript and JavaScript, Varmac ensured that turbo dev builds and NestJS CLI operations no longer triggered warnings, which improved developer experience and maintained forward compatibility with newer versions. His backend and frontend development work contributed to healthier monorepo maintenance, reducing runtime risks and supporting best practices for dependency management in Node.js environments.