u/Aggressive-Turnip843

I originally wanted to to get and egpu and plug it into my laptop but quickly found out most laptops don't support egpu and the once that do don't really need one. I currently traveling with my Dan h2o case with a 3080 16gb​. It honestly works really well but id love to see if I could Crack down on the size and weight. I've been considering building a really small computer like sub 4L and then plugging a egpu into it. What do yall think. Is this a good idea?