Hi.  I'm thinking of writing the bulk of my game in CL but using a bit of C + CFFI for graphics/sound etc.  Is this allowed under the rules?  Seems to me that it isn't but I want to check.  Thanks.

Hi! I'm glad you asked because this is 100% allowed! We all need to reach out to lower level system libraries at some point in our stack. I don't know of any way to do OpenGL without libGL, for example. Enjoy the jam!