More and more companies are adopting DevOps as a way to quickly improve their value. During this journey, they are standarzing their delivery process, creating automation to build, test and release. Now, it is time to mutualize this pipeline efforts and push it at the next level. Indeed pipelines have alway been a matter of code but now it is obvious that there is a need to create pipeline libraries. They are few tools on the market which allow a pipeline developer to act as any other developer, which means beeing able to develop and test on its laptop. Dagger solve this issue, let's see together how does it work.