GitLab

Compiles and runs; but the results don't.
Some small issues; some big issues.  Just needed a checkpoint.

It's feeling like it's time to deal with breaking down the assembler
generators in the same way we did for all the node components, which
is going to be kind of a big shakeup.

I *think* the notes on Maybes are now oscillating increasingly closely
around a consistent centroid.  But getting here has been a one heck of
a noodle-scratcher.