adele, Brutalism is a design coming from architecture and some websites use its concepts.
https://brutalist-web.design/I think that it's a good idea to have a look to it, because this design can be fully compatible with #smolweb concept. A bit different from minimalism, a website adopting #Brutalism may be lightweight and with its own singularity.
If you want to build a smolweb site, you should study this concept.
Be careful, some Brutalist templates exist but use heavy framework, avoid them.