CoreELEC in QEMU

It seems a qemu x86_64 host can emulate aarch64. Has anyone tried to create a CE guest?
I wanted to do some tests with the docker plugin and homeassistant, and my S905X3 box died last week (I need to solder a new DC plug I ordered in Aliexpress when and if it gets here).
It would be great to be able to do it in a virtualized environment, anyone?

Thanks @vpeter!