Let me know if you spot issues or have suggestions!
Disclaimer: It takes about a week to rerender all the existing tiles, so changes might not be visible immediatly.
Using (Forest and Buildings Removed Copernicus DEM) for global coverage in place of multiple DEM sources may help reduce unnecessary processing overhead in your workflow. It is undergoing extensive testing rigor by the geo-sciences community.
Edit: Apparently, I got a little too excited. There are some commercial products on the market lauding improvements of the pre-existing data which I mistook for a open access successor. I do, however, see innumerable attempts by research groups to eek out the highest degree of accuracy possible from the former. Good luck!