Diagram of the MSG model algorithm for cloudy sub-stellar atmospheres. The boxes with a dashed outline indicate parameters that are inputs to the model. The boxes with a dotted outline indicate control processes within the workflow. A detailed explanation of the cloud formation process can be seen in Sect. 2. The control process is explained in detail in Sect. 4.3. The convergence criteria considered under the control process are described in Sect. 4.1.