This is a WIP of a plugin that replaces your keyboard input with alternative keyboard layout you have.
Inside there is a unicode codepoints table from EN to RUS keyboard and vice
versa. The script transliterates the input text with the help of lua-utf8
library, which you'll have to compile by yourself and put it into where it
should be, so that require'lua-utf8' would not fail. The transliterated
text is pushed to autocomplete menu of mistype.
The behaviour of this plugin is not exactly as I want it to, but it seems
thats mostly the behaviour of nvim-cmp.
Anyway, play with it as you like, and MR if you want to.
Made on the basis of https://github.com/cpkio/cmp-source-template