static HTML files - I am not kidding these days you can embed JS and WebAssembly in your HTML file and have plenty of advanced features: SIMD, GPU access, GUI

static HTML files - I am not kidding these days you can embed JS and WebAssembly in your HTML file and have plenty of advanced features: SIMD, GPU access, GUI (obviously), even barcode scanners gently provided by the browser, ... it's only the tooling that is not there yet. give it a few years or so. I am doing myself some work in this area and I must say - the technology is there, it's only a matter of porting to the the web a few scientific libraries