GRPlInst is a module for the CRPropa code to calculate the effect of plasma instabilities on the development of electromagnetic cascades. It is described in:

R. Alves Batista, A. Saveliev, E. M. de Gouveia Dal Pino. MNRAS 489 (2019) 3836. arXiv:1904.13345

If you make use of grplinst, please consider citing the above paper.

The code and instructions on how to use it can be found in: