Unfortunately, the GREX project is no longer maintained.
Please see the GRAS project history page to learn more.
I am not comfortable disclosing any more information at this time.
Many of the interesting blocks found in this project can now be found in the pothos-blocks project.
Please checkout the Pothos project homepage.
Let me know if you think a specific block is missing,
or please request one that that would be useful to have.
Feedback is always appreciated!