That’s shifting the goalposts a bit. You can use optional typing in your project as it’s scales, and there are plenty of projects that have been stable for what they do through other testing. Pick dependencies carefully and use typing as needed
I'd say typing is even more important when you are using other people's code with your code.
It's also a huge productivity boost too when the relevant methods and types are available to you, the editor almost writes the code itself!
