LibVF.IO

Perhaps not the "best" source code I've ever read, but libVF.io had some beautiful code for what's generally gnarly system-glue code. The libVF.io iommu setup code is a good example and inspires me to think that system-glue code doesn't need to be gross or impenetrable: https://github.com/Arc-Compute/LibVF.IO/blob/master/src/libv... Another one I've appreciated reading (and learned more about 2d graphics from) is Pixie, a 2d graphics library written in Nim. It's strongly affected how I write similar code. Here's the implementation of a fair subset of SVG paths: https://github.com/treeform/pixie/blob/master/src/pixie/path... And one last one for basic algorithms which I'd use to teach intro to data structures any day: https://github.com/nim-lang/Nim/blob/version-1-6/lib/pure/al... Of course Knuth's original code is still some of the bes

https://github.com/Arc-Compute/LibVF.IO/tree/master/ plus https://github.com/gnif/LookingGlass works pretty well. If you use an Intel GPU, particularly one of their new Arc dedicated GPUs, it supports the functionality on the consumer grade hardware without any trickery and you just need Looking Glass to map the outputs. If you really want multiple GPUs though you can also use a normal 1-in-4-out type PCIe switch and save a lot of cost on Thunderbolt components in-between. Low bandwidth ones are particularly dirt cheap due to crypto mining volume. Keep an eye out for ACS support or you may have to use an ACS override patch though.