First install packer
git clone --depth 1 https://github.com/wbthomason/packer.nvim\
~/.local/share/nvim/site/pack/packer/start/packer.nvim
Copy all files in ~/.config
cp -R nvim ~/.config/nvim
Then inside lua/shinji/pakcer.lua do a :so
and save.
After that type :PackerSync
; it will sync packer with the file and install all the plugins.
Restart nvim and voilà!