This version is technically unrestricted, but cannot be used for commercial purposes.
It _can_ be used for commercial purposes; you have to secure Kx' explicit permission, though.
thanks. I've seen that before, but for some reason I kept assuming that it was different than an actual k interpreter because none of their docs refer to the K language.
q is a language written in k - when in the q interpreter, you can drop into k by typing a single '\', and then return to q using the same method.