nixos-configs/homeConfigurations/muede/editorconfig.nix

{
  config.editorconfig = {
    enable = true;
    settings = {
      "*" = {
        charset = "utf-8";
        end_of_line = "lf";
        trim_trailing_whitespace = true;
        insert_final_newline = true;
        max_line_width = 120;
        indent_style = "space";
        indent_size = 4;
      };
      "*.nix" = {
        indent_size = 2;
      };
    };
  };
}