native library

The parts of this package that need a filesystem.

import 'package:flutter3d_screens/native.dart';

A second entry point rather than more exports on the main barrel, for the reason flutter3d_hardware/testing.dart is one: flutter3d_screens.dart is imported by games that build for the web, and a dart:io import anywhere behind it makes the whole package refuse to compile there. What is here needs File and says so by being somewhere a web build never looks.

One thing so far — writing a document without the moment where it is half a document, which the editor needed and had written the unsafe version of.