While the CalcUS platform currently contains a selected set of tools for computational chemistry, it also constitutes a solid foundation for developers to expand on. Through the use of a user-friendly web interface and a stable virtual environment, it constitutes a convenient way to distribute software packages in a "plug-and-play" fashion. Indeed, any required configuration or dependency can be automated through Docker. This greatly reduces the friction that a user might encounter when trying new software packages for the first time. We aim to constantly improve the usefulness of CalcUS for the scientific community, especially with the help of the latter. Consequently, while it is possible to copy the code and perform modifications on local versions, we encourage users to submit improvements on the Github repository.