nix/home/config/nvim/module/plugin/Indent.nix

{ ... }:
{
  text = ''
    -- Auto-detect indentation type.
    require("indent-o-matic").setup {
      max_lines       = 1024,
      skip_multiline  = true,
      standard_widths = { 2, 4, 8 },
    }
  '';
}