Integrating Jenkins with other tools or solutions has presented some challenges. For instance, when attempting to integrate Jenkins with Kubernetes, I encountered numerous errors, which took several days to resolve. In Jenkins, adding a feature typically involves incorporating the repository feature separately. Jenkins lacks built-in Git repository functionality, necessitating an external Git repository to store Jenkins manifests. In contrast, GitLab offers an integrated Git repository and pipeline runner, streamlining the process. One improvement for Jenkins could be integrating a Git server, simplifying the management of CI/CD pipelines. Currently, with Jenkins, modifying pipeline manifests requires navigating to a separate Git repository. In GitLab, however, manifest changes can be made directly within the repository.