-The goal is essentially to implement the full "high-level" API of the
-Perl modules in a combination of Python and Pyrex.
+The goal is essentially to implement the full set of "high-level" APIs
+provided by the Perl modules in a combination of Python and
+Cython. This will typically involve a fairly simple wrapping of the C
+API in a Cython module (e.g. afs._pts), and then a higher-level
+wrapping of that Cython module in pure Python (e.g. afs.pts).