Hi wimb, JFX,
Yeah, the site down for the 2nd time, and for a while now, I'hope it's in intensive care.
I'm not working on it but at the request of a few, I uploaded the latest package on github 2 months ago here https://github.com/ChrisRfr/Win10XPE
It is cut in 2 parts, Win10XPE_2019-12-19.7z.001 and .002 in accordance with the 100 Mb Github size limit
Kyhi(James) also shares the projet with additional 3rd party Apps plugins on tenforums here: Win10XPE - Build Your Own Rescue Media