QRF has been used in around a dozen publications within the Betty's Brain learning system.
See project webpage
QRF is currently being actively used within the WHIMC project and is slated for deployment in Decimal Point and The Hidden Village within the next year.
QRF is fully open-source. The most recent release version is available on the PCLA Github page.
To learn more or to collaborate with us in using QRF in your projects, please contact Ryan Baker.