This actually tickles the -opipefail, and is only necessary if you're rebuilding (which isn't really safe, because it can slice downstream builds.)
And a config description. This doesn't yet have much - first want to make sure I can do the build job. Next I'll submit the e2e script with its twiddles and switch those over. (After going to 3 e2es, I think it's finally time for version control.)