Actually I do. Whenever I need a small tool like a calculator for a video game or a simple GUI program for processing images, I always go for a barebones single

Actually I do. Whenever I need a small tool like a calculator for a video game or a simple GUI program for processing images, I always go for a barebones single html file web application. For example, this is a simple visualizer for different numerical integrators that I wrote in a day or two for a college course: https://scleox.github.io/integrator-visualizer/index.html https://scleox.github.io/integrator-visualizer/index.html. The the source code is just one single html file: https://github.com/SCLeoX/integrator-visualizer/blob/master/index.html https://github.com/SCLeoX/integrator-visualizer/blob/master/...