I've never had any luck getting exposure to my code. I'm not good at marketing. If anyone wanted to contribute, we could set one up. I'm always happy for more ASM backends. The setjmp implementation abuses the internal state of jmpbuf, but tends to work everywhere. Yet native ASM backends tend to be twice as fast on average.

Cooperative threading is also really niche. I personally think it's an incredibly transformative model for a lot of tasks. But when preemptive threading came around, everyone abandoned it as old hat.

I also wrote a toolkit abstraction layer based around C++11 (full support for lambda callbacks.) 100% encapsulated using private implementation, so it doesn't leak platform headers into your global namespace at all. Amazingly consistent API, even moreso than Qt. It has backends for Win32, Cocoa, GTK+ and Qt. Full support for layouts and auto-resizing windows. Goes to the trouble of doing things that are insanely hard on specific toolkits sometimes (try hiding a menu item on Windows: it's not supported. So you have to destroy the entire menu and rebuild it without adding that one item. This wrapper does that for you transparently. Or try working with frame geometry on Linux. The toolkits and WMs will fight you to the death, yet it's a common idiom on Windows.) By targeting all APIs, I had to target the least common denominator, so don't expect a web browser widget or a Ribbon or a floating dock. But the end result is that with around 100KB of wrapper code, you can build the exact same app on Windows, OS X, Linux and BSD; and it will be 100% native. Unlike Qt or GTK+, you won't need 40MB of run-time DLLs to distribute it on Windows. And since it's so much smaller, it's far less buggy than Qt tends to be. It also insulates you from having to learn/write Objective-C for Cocoa, C for GTK+, moc and qmake for Qt, and message loops for Windows. And the best part is, if a new killer API emerges, it's small enough that in two weeks you could write a new wrapper and run your apps on a new platform. Try porting Qt to a new target.

I also wrote a lighter-weight version of SDL. It gives you a raw video buffer, audio sample writer, and input manager for keyboards, mice and gamepads+rumble. There's about 30 API drivers in there (OpenGL, Direct3D, X-video, XAudio2, DirectSound, ALSA, Pulse, OSS, XInput, RawInput, Carbon, amusingly SDL itself, etc.) Meant to integrate into existing applications rather than manage a window, so it binds a child window inside your own app for rendering, and does hardware scaling + multi-pass pixel shaders where available. Doesn't try and implement drawing/scaling functions, image conversion, window management, music file playback, etc. Extremely low level, so that adding a driver takes around 10 minutes if you know the API for it.

My current ambition is to design a low-level, minimalist, object-oriented programming language. Statically typed, strongly typed, with absolutely zero undefined behavior, as close to LL(1) and context-free as possible (must be fully parseable with recursive descent), etc. The goal would be to allow compilation to native binaries (initially via conversion to C, later via LLVM backend if it gains any traction), or to run inside of an existing application as a scripting language. Low-level enough for C-level performance, yet safe enough to be truly portable, yet simple enough to be easily embeddable in other languages. A very lofty goal, but it'll be a fun learning experience if nothing else.