[throwaway59229]

Why did Google choose to fork QEMU?

I had a brief look at the setup information and there’s nothing that makes it clear why there’s yet another piece of highly Google-specific (though presumably open source) software that people would need to learn to use while they learn about Fuschia.

[raggi]

FEMU is really AEMU, it forked from QEMU many years ago for a variety of reasons.

Today this configuration offers Vulkan support, which will hopefully make it's way back to QEMU eventually.

We use both QEMU and FEMU in our work, if you checkout Fuchsia you will find prebuilts of both in //prebuilt. QEMU provides broader control over hardware and broader emulation features, often useful to the kernel and driver teams. FEMU provides Vulkan graphics, more useful for teams working on GUI applications.