---
   The most recent information I've found so far on gneuralnetwork is at
   [1]https://groups.google.com/g/gnu.announce/c/rx2QwAzClNE/m/F1J3TVRJBQA
   J from 2016.
   The main page on gneural network for indicates it is decontinued.
   Normally, I'd expect to find some kind of clear message when that
   happened.
   The poster of the gneuralnetwork update also mentions archimedes, looks
   like a chip simulation thing.
   ---

References

   1. https://groups.google.com/g/gnu.announce/c/rx2QwAzClNE/m/F1J3TVRJBQAJ