interesting , really interesting ! I looked at the website unfortunately I couldn't understand what this really is for ? (skill issue I know) , could you pleas

interesting , really interesting ! I looked at the website unfortunately I couldn't understand what this really is for ? (skill issue I know) , could you please try to explain it here / have a tldr on the website (maybe a gui example , hey I recommend asciicinema and converting it to gif and adding it to homepage)