So code and test and document programs in a fully self-contained TiddlyWiki, then export that code for inclusion in a bigger project using robust programming tools.
Although I’m using BASIC, imagine any other programming language.
And although this sample code is a little ridiculous, imagine the ability to export some serious code: Alphabet Attacks source code
And the bonus of custom TiddlyWiki export of source code and javascript to an HTML file for a version of the application that can be deployed to the web…
That is a game for exercising keyboard skills. Set your keyboard to CAPS LOCK and type the letters before they hit the ground.