21:12:23shihoError message is "Received error of type: CASE-FAILURE DELETE-PACKAGE* fell through ETYPECASE expression. Wanted one of #'SYMBOL. Debugger disabled - exiting."
21:13:03drmeisterYeah - that looks like it requires a distclean.
21:13:12drmeisterDid you build it from a distclean?
21:45:03drmeisterKevslinger, Bike: You could use a figure from here https://ipywidgets.readthedocs.io/en/latest/examples/Widget%20Low%20Level.html#Comms
21:45:35drmeisterTo describe the jupyter widgets implementation.
22:18:23drmeisterI don’t see any functionality for binary buffers
22:19:35drmeisterThe pzmq bindings appear different in python and CL-jupyter
22:20:22drmeisterSend_multipart in Python and just send in Common Lisp
23:06:31drmeisterFurther investigation reveals that there is support for buffers - but it appears to stop in the penultimate step.