Worked on deployment stability and environment configuration for the prezly/theme-nextjs-bea repository, focusing on asset delivery reliability across production and preview environments. Addressed two critical bugs by updating and reverting CDN domain settings within Dockerfile and Dockerfile.preview, ensuring consistent use of the intended Uploadcare CDN endpoint. Leveraged skills in containerization, DevOps, and Docker to validate and align deployment configurations, mitigating risks of asset misrouting and supporting reliable operations. Demonstrated a methodical approach to rapid rollback and configuration management, emphasizing environment consistency over new feature development during the two-month period. All work was performed using Dockerfile and related deployment tooling.