The antonym for the phrase "more setup" would be "less setup." If someone is looking to simplify a process or system, they may want to reduce the setup required. This could mean using fewer tools, resources, or steps to achieve the same result. Alternatively, they may look for ways to streamline the setup process, making it more efficient and less time-consuming. By reducing the setup, they can focus more on the task at hand and avoid unnecessary complications. Ultimately, the opposite of "more setup" is finding ways to achieve the same result with less effort and resources.