Peroquium is a free two-day colloquium organized by young researchers from across France. This first edition will be held from 31/03/2022 to 01/04/2022 in a hybrid in-person/online format hosted at the Saclay campus, including Ecole polytechnique, IPVF and Synchrotron Soleil. Peroquium aims at providing the participants with an overview of the current trendy topics in the development of halide perovskites for photovoltaic or lighting applications. This workshop consists of two main themes, each for its respective day: the first one is devoted to the exploration of optoelectronic properties while material synthesis and device characterization is the topic of the second day.