Great job!
In the app, you can only see the current line you are typing, and you are allowed three backspaces at a time (combinations are allowed).
There's also a visual of blurred text in the background to help you feel like you are achieving some progress.
This was just a fun experiment, but I wanted to get some feedback to see if people actually would want to use this sort of thing.
But I don't like this whole thing of never editing, never looking back, move forward and break things anyway.
I used this to write my first book and it took 48 hours. And then I spent months editing it before I published it.