{ config, lib, pkgs, ... }:

let
  my-vimrc =
    pkgs.writeTextFile {
      name = "vimrc";
      text = ''
        imap jk <ESC>
        xmap JK <ESC>
        set number
        set relativenumber
      '';
    };

  my-neovim =
    pkgs.symlinkJoin {
      name = "neovim";
      paths = [ pkgs.neovim ];
      buildInputs = [ pkgs.makeWrapper ];
      postBuild = ''
        wrapProgram $out/bin/nvim \
          --add-flags "-u ${my-vimrc}"
        # Symlink {v,vi,vim} to nvim.
        for i in {v,vi,vim}; do
          ln -s $out/bin/nvim $out/bin/$i
        done
      '';
    };
in {
  home.packages = [ my-neovim ];
}