{config, ...}: {
  programs.nixvim = {
    autoGroups = {
      cursor_off = {clear = true;};
      colorcolumn_toggle = {clear = true;};
      numbertoggle = {clear = true;};
      coloroverride = {clear = true;};
      highlight_on_yank = {clear = true;};
    };
    autoCmd = [
      {
        event = ["TextYankPost"];
        pattern = ["*"];
        callback = {
          __raw = ''
            function()
              vim.highlight.on_yank()
            end
          '';
        };
        group = "highlight_on_yank";
        description = "Highlight the yanked text";
      }
      {
        event = ["BufWritePre"];
        pattern = ["*"];
        command = ''
          ks | if search("\\s\\+$", 'n') != 0 | :%s/\s\+$// | endif | 's
        '';
        description = ''
          Remove trailing whitespace on safe
          :%s/\s\+$\| \+\ze\t//g >> For trailing spaces and spaces before tabstops
        '';
      }

      {
        event = ["WinLeave"];
        pattern = ["*"];
        command = "set nocursorline"; # TODO: possible also nocursorcolumn
        group = "cursor_off";
        description = "Display cursorline and cursorcolumn ONLY in active window.";
      }
      {
        event = ["WinEnter"];
        pattern = ["*"];
        command = "set cursorline"; # TODO: possible also cursorcolumn
        group = "cursor_off";
        description = "Display cursorline and cursorcolumn ONLY in active window.";
      }

      {
        event = ["InsertEnter"];
        pattern = ["*"];
        command = "set colorcolumn=${config.programs.nixvim.options.colorcolumn}";
        group = "colorcolumn_toggle";
        description = "Only activate the colorcolumn when focused";
      }
      {
        event = ["BufLeave" "FocusLost" "InsertLeave" "WinLeave"];
        pattern = ["*"];
        command = "set colorcolumn=0";
        group = "colorcolumn_toggle";
        description = "Only activate the colorcolumn when focused";
      }

      {
        event = ["BufEnter" "FocusGained" "InsertLeave" "WinEnter"];
        pattern = ["*"];
        command = "if &nu && mode() != \"i\" | set rnu   | endif";
        group = "numbertoggle";
        description = "Change line numbers, when not focused";
      }
      {
        event = ["BufLeave" "FocusLost" "InsertEnter" "WinLeave"];
        pattern = ["*"];
        command = "if &nu | set nornu | endif";
        group = "numbertoggle";
        description = "Change line numbers, when not focused";
      }

      {
        # Override LineNr
        event = ["ColorScheme"];
        pattern = ["*"];
        command = "highlight LineNr  ctermfg=DarkGrey guifg=DarkGrey ";
        group = "coloroverride";
        description = "Changes Line number colors";
      }
      {
        # Override CursorLineNr
        event = ["ColorScheme"];
        pattern = ["*"];
        command = "highlight CursorLineNr  ctermfg=White guifg=White ";
        group = "coloroverride";
        description = "Changes Line number colors";
      }
    ];
  };
}