git clone git://github.com/nono/dotfiles ~/dotfiles
git submodule update --init
cd ~/dotfiles

And then copy/symlink the relevant files

The config for neovim is in ~/.config/nvim, not ~/.nvim. Same for git and kitty.

There is a config file to start MailHog with systemd:

sudo cp /home/nono/config/systemd/mailhog.service /etc/systemd/system/
sudo systemctl start mailhog
sudo systemctl enable mailhog

I'm using some submodules for vendor modules, but I'm moving to subtrees.