Glad to read that everything went fine. You are thus good to go for the next step. In the meantime, I am looking forward to see your report. Please use the #citizenscience tag so that I could easily find them. Moreover, having all the reports in the same place will help for advertisement later on.
PS: after some comments by @eniolw and @servelle, I have added a line in my post about a requirement. A Fortran compiler and a C++ compiler need to be present on the system. I imagine you have a C++ compiler (otherwise it would have been impossible to install Pythia 8), but I don't know the status of your Fortran compiler. Please check it out if needed.