This is beautiful. I want to know: 1. Do they share their platform for others to create similar content? 2. Where is the personalization? I was unable to see

This is beautiful. I want to know: 1. Do they share their platform for others to create similar content? 2. Where is the personalization? I was unable to see how the content was being personalized to my ability. Maybe I missed something? 3. If they don't share their platform, is there any equivalent open source platform or software out there that can provide me this?