Worked on the grafana/k6-DefinitelyTyped repository to enhance PostgreSQL connection pooling by reintroducing the minimum idle connections configuration. Implemented the 'min' option for PgPool, allowing developers to specify the minimum number of idle client connections, which improves readiness and resource management for PostgreSQL workloads. Focused on type safety and accuracy in TypeScript, the update ensures better developer tooling and reduces the risk of runtime issues. The work leveraged skills in database connection pooling, Node.js, and TypeScript, resulting in more predictable connection behavior and streamlined resource utilization without introducing new bugs during the development period.