Is ISPF some kind of technology? I googled it, and the first few pages were all non-technical things. I searched for it on GitHub, and the first few pages had n

Is ISPF some kind of technology? I googled it, and the first few pages were all non-technical things. I searched for it on GitHub, and the first few pages had nothing to do with social media, P2P, distributed services, federation, nor anything else that could be relevant. Please provide a link if you can.