I struggle to understand their endurance on their live coding sessions, for example https://youtu.be/VYAT6NZUQUE https://youtu.be/VYAT6NZUQUE I want to watch th

I struggle to understand their endurance on their live coding sessions, for example https://youtu.be/VYAT6NZUQUE https://youtu.be/VYAT6NZUQUE I want to watch them carefully and slowly from the start, it's so good to see the development workflow, testing, etc, initially the music was a bit difficult for me but seeing such progress and knowledge is amazing, just amazing