We divide this talk into two parts. In the first part, we will introduce the numerical codes we use, mainly in solar physics, to infer information about the solar atmosphere from spectro-polarimetric observations. In particular, we will present a new version that was recently developed (see Ruiz Cobo et al., 2022). In the second part of the talk, we will learn how we opted to bring the code to the public through online tutorials, and we will show where to find them (see the link below). Also, we will explain why we believe this new approach could be interesting for other research areas and give some tips in case someone is interested in trying the method.