I hadn't, but just took a look at it; thank you for pointing it out so that I can be sure I follow it. I guess what confuses me the most is that CrossTeX is written in Python, and all of the information I can find assumes that everything about TeX is either in TeX macros itself or possibly C---what do I need to do about my Python library and script placement?You've read and followed the TeX Policy which is in the tex-common package?
Robert