You can install cyberpunk via plug adding to your .vimrc or init.vim:

Plug 'thedenisnikulin/vim-cyberpunk'

Or manually copying:

• colors -> ~/.vim/colors
• autoload/airline/* -> ~/.config/nvim/plugged/vim-airline-themes/autoload/airline/themes
• lightline -> ~/.vim/autoload/lightline

For Cyberpunk theme:

set termguicolors
colorscheme cyberpunk
let g:airline_theme='cyberpunk'

For Silverhand theme, change cyberpunk in the above lines to silverhand.

Also you can choose between default or black cursorline color if it's enabled.

set cursorline
let g:cyberpunk_cursorline="black"

Inspired by https://github.com/aloussase/cyberpunk