Function run_setup 

pub fn run_setup(
    config_path: &Path,
    instance_data: &Path,
    force: bool,
    executor: &impl CommandExecutor,
    cancelled: &dyn Fn() -> bool,
    accepted: impl FnOnce(),
) -> Result<Option<SetupReport>>

Returns None when automatic setup belongs to an existing installation. The accepted callback runs under the setup lock, before discovery starts.