None of it is staged. Open /live.html and it draws whatever game Lichess TV is showing right now: real players, real ratings, a real clock draining. A Stockfish sits inside the graphics chain and evaluates every position as it arrives, which buys three things a television feed cannot give you: how often the move played was the engine's own first choice, a premove detector read off the feed's own timing floor, and the move that wasn't played, drawn across the board as a ghost.