Anyway to program a Simatic S5 101?

Hi, I got a Siemens Simatic S5 101 Plc more or less for free. It also came with an expansion board. As far as I know the terms free and siemens don't match well. It would be sad if there is no way to program this slightly outdated PLC. It is just for hobby purposes rather than a production environment.

Does anyone of you have an idea how I can program/interface this plc for free? I do not hesitate to use ancient software. It is more or less for fun. https://omegle.onl/ vshare