The manipulation of technology plays a crucial role in Light Yagami's strategies in the anime series "Death Note." Light uses various technological tools such as the Death Note itself, surveillance cameras, and the internet to execute his plans and manipulate situations to his advantage. For example, he uses the Death Note to control the actions of individuals from a distance, hacks into systems to gather information, and uses technology to stay one step ahead of his opponents and the authorities. Overall, technology serves as a powerful tool for Light Yagami to achieve his goals and outmaneuver his adversaries.