And just for you, I pulled some very ancient code of mine (2012) and stripped it down enough so that it renders a single triangle (and you can move around), not

And just for you, I pulled some very ancient code of mine (2012) and stripped it down enough so that it renders a single triangle (and you can move around), nothing more. https://github.com/jleahy/gldemo https://github.com/jleahy/gldemo That's a full OpenGL setup, with all the fiddly bits taken care of. Obviously it's a bit over the top (you don't need vertex buffer region management for one triangle), you don't need SIMD matmul, but that's the maximum. You could port that to any language with OpenGL bindings.