Trying any i. e. lua-based config

[573]

Hello,
I would like to integrate lua-based config (i. e. https://github.com/nathunsmitty/.config/blob/master/nvim/lua/lsp/init.lua) with neovim-nightly-overlay.

So far I tried :exe 'edit '.stdpath('config').'/init.vim' in nvim and put just

lua << EOF
local nvim_lsp = require('nvim_lsp')
EOF

as a test.

But when restarting nvim I get (shortened log):

Error detected while processing ~/.config/nvim/init.vim:
line 3:
E5108: Error executing lua [string ":lua"]:1: module 'nvim_lsp' not found:
no field package.preload['nvim_lsp']
no file './nvim_lsp.lua'
no file '/nix/store/62h7raxpscqaq0fzqzjk0dbgsr4njxij-luajit-2.1.0-2020-09-30/share/luajit-2.1.0-beta3/nvim_lsp.l
ua'
no file '/usr/local/share/lua/5.1/nvim_lsp.lua'
no file '/usr/local/share/lua/5.1/nvim_lsp/init.lua'
no file '/nix/store/62h7raxpscqaq0fzqzjk0dbgsr4njxij-luajit-2.1.0-2020-09-30/share/lua/5.1/nvim_lsp.lua'
no file '/nix/store/62h7raxpscqaq0fzqzjk0dbgsr4njxij-luajit-2.1.0-2020-09-30/share/lua/5.1/nvim_lsp/init.lua'

etc.

[573]

To anwer myself: Don't.

Just use (in home.nix or configuration.nix), snippet:

programs.neovim = {
    enable = true;
    package = pkgs.neovim-nightly;
    extraConfig = ''
      lua << EOF
      local nvim_lsp = require('nvim_lsp')
      EOF
      '';
}