Developers are more productive when they have a continuous integration/continuous delivery (CI/CD) pipeline in place. GitLab CI/CD is a popular tool for managing pipelines, and one of its great features is the ability to send notifications to Slack. With Slack notifications enabled, developers can get real-time updates on the status of their pipeline, so they always know what's happening with their code changes. In addition, Slack notifications can help to improve collaboration among team members by providing a central place for discussion and feedback.