[RFE] Support specifying a mirror used under the build
Created by: klausenbusk
Is your feature request related to a problem? Please describe. I'm always frustrated when the build takes forever, because it is using a slow mirror
Describe the solution you'd like
Add a new variable which is supplied to install.sh and used under the installation.
Describe alternatives you've considered None
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information