[actionfromafar]

Absolutetely, but speaking as someone who has tried to get ccache to work in Azure pipelines properly...

I mean, ccache worked. But it wasn't exactly faster. Have to try again with a permanent memcached. Also, it's fiddly with paths, the absolute paths have to be the same, so if you run more than one build agent on a machine, those agent aren't going to cache each other's stuff. The "dropbox = rsync + ftp" meme is pretty beaten up, but maybe it applies here. :-)