algorithmic modeling for Rhino
Ah, apologies. That's an additional plug-in for Embryo with some sample block shapes that I haven't made public - my apologies!
Find attached the library. It will just appear as a few components under the Frobel tab (in Embryo).
Note that I'm working on implementing clusters for the next Embryo release, which means you won't have to compile bespoke components to use them as a shape grammar, you can just make a cluster or user object and Embryo will include it in the generated definition.
Hope this helps!