Rosen Papazov focused on backend reliability for the CycloneDX/cdxgen repository, addressing a critical bug affecting container registry connections. He improved Podman socket detection and refined Docker authentication header handling, ensuring stable image pulls across Docker and Podman environments. Using Node.js and JavaScript, Rosen adjusted the transmission and scoping of registry credentials, implementing base64url encoding to align with API requirements and prevent credential leakage between registries. By preserving correct socket resolution and limiting per-request options, he enhanced connection stability and security. This work demonstrated depth in API integration and backend development, resolving a nuanced interoperability issue within containerized workflows.