Worked on the zitadel/zitadel repository to address a critical PostgreSQL connectivity issue impacting API startup and database access. Focused on configuration management and DevOps practices, the developer updated the ZITADEL_VERSION in the environment example file to v4.13.0, ensuring compatibility with PostgreSQL DSN requirements and reducing configuration drift. This targeted fix, implemented using Docker and Dockerfile, restored reliable connections and improved deployment stability by eliminating startup failures. The work was thoroughly documented and committed with clear messaging, supporting traceability and collaboration. Overall, the contribution enhanced operational reliability and demonstrated careful attention to environment configuration and version management.