This looks great! The paper linked in your README https://hoheinzollern.files.wordpress.com/2008/04/seer1.pdf also seems like a nice explanation of similar ideas.

The reason I'm exploring this idea is to use more natural looking python as dsl for function definitions in my proof assistant https://github.com/philzook58/knuckledragger

Also to see if I can make a nice-looking staged metaprogramming framework in python like buildit, but maybe to generate C/C++ rather than more python.

Could Crosshair be used in these ways?