Using Hugo template in Franklin

Hi!, as the title says, I would like to use a Hugo template (hello-friend-ng | Hugo Themes) in Franklin. I didn’t think I could , but I’ve seen websites made with Franklin that use a Hugo template. I tried to find information about it, but nothing seems straightforward. I’m a novice in CSS, so I’m not sure exactly what I need to do. Also, I’m unsure if I have to start from scratch or if it’s possible with my existing site. Thank you.