Requirements:

Neovim ≥ 0.9.5
Zathura
Texlive including latexmk

Installation:

Move nvim folder to ~/.config/ for Linux users or ~/AppData/Local/nvim for Windows users.
For zathura configuration file do the same.

Includes:

Snippets for TeX files written using Luasnips(it is recommended to see read the snippets written in nvim/lua/snippets/tex) and some others imported from https://github.com/rafamadriz/friendly-snippets.git
Vimtex to compile TeX files.
Zathura is set as the default pdf viewer. In zathura/ is included a configuration file for zathura dark theme.

Warning:

I enabled the transparent background in one-dark theme because I prefer to use kitty’s background. Deactivate the transparency if you don’t like it.
I just tested it in Fedora Minimal after installing the requirements specified. If you use other distro this may not be enough.