A vim keymap file for Ukrainian QWERTY/ЙЦУКЕН Mac layout.
Based on ukrainian-enhanced.vim by Ivan Korneliuk.
Copy ukrainian-jcukenmac.vim file to local directory (may differ depending on vim/neovim etc.)
For neovim path, check this out: https://neovim.io/doc/user/usr_45.html#45.5
In .vimrc, write
set keymap=ukrainian-jcukenmac "insert text in Ukrainian by pressing ctrl+^Restart vim and you should be ready to go.