dotfiles VS .dots

I want to install this rice https://github.com/tsjazil/dotfiles , but I'm not an expert and it's the first time that i try. So i google it but there isn't a real guide. I mean that I have to install polybar, rofy, ecc... firstly, copy the .config files into my .config in home directory. and after ?

Dotfiles on github

While working on my dotfiles I found myself needing a configuration language that, first and foremost, was visually pleasing to look at, hence why I didn't consider something like XML. Now, I wanted one that supported objects and didn't look all messed up if I were to deeply nest them. With this in mind I removed TOML and INI from the list of possible candidates. But now, I wanted to be able to have stuff like variables, comments and perhaps some data casting functionality. Here is when I removed good ol' JSON from the picture. We are left with YAML, yet again, I really don't like YAMLs' syntactic rules and the fact that there is some ambiguity on how some stuff is defined.