After a hidden start in the group of Hanns Ruder in Tübingen more than 20 years ago. A continous development in the backyard within the group of Syn Schmitt in SimTech at the University of Stuttgart, we are proud to publish our code open source, today. The main package demoa-base together with various models of the human, ready to run, is available in DARUS as dataverse: https://darus.uni-stuttgart.de/dataverse/demoa. A more polished version to download demoa can be found here: get-demoa.com. Please use it and reference appropriately.