Fig. 2

CREDOengine's structured flow across layers. Each layer builds upon the previous one, creating a sequential enhancement of the docker object: Layer 0 provides the basic environment, requiring either Python or R modules. Layer 1 builds on this, adding combined Python and R support, and each subsequent layer extends the capabilities. Layer 2 allows the implementation of a graphical interface. Layer 3 implements the ability to run docker in docker. Layer 4 provides the infrastructure for the installation of additional software beyond Python and R. This sequential flow ensures a coherent build-up of features, allowing users to develop a Dockerfile progressively tailored to their needs