Stefan Mileschin

Dreamlayers ported DOSBOX via Emscripten into a browser-functional emulator. He did it all by himself, and he did it very well, all things considered. His name for it is em-dosbox. I'm just going to lay it out and say that Dreamlayers is a software engineering genius, one of those people with a gift for coding and making things work not just better, but understanding what things have to be left tied down and waiting for later improvements. Most of his em-dosbox notes are where Emscripten falls down as a compiling and conversion platform, with indications of how they can be improved. And buried in the code of his is an alien artifact that makes the generated javascript from the process run extremely fast.

http://osnews.com/story/28166/Each_new_boot_a_miracle