Yes, Hugo tries to be that, but it doesn't succeed in offering enough good conventions, so if you want to use one of the many setups available things are going

Yes, Hugo tries to be that, but it doesn't succeed in offering enough good conventions, so if you want to use one of the many setups available things are going to get messy. Making something a website generator isn't easy. Not least because people who design and implement these things seem to love fiddling around with website generator tools. Which isn't necessarily what users like.