We're pretty far into the big Vala migration now, enough to talk about where we're going with it.
The most notable new component is libsoy, a glib-based library written in Vala that integrates all our dependencies to provide the non-Python functionality of PySoy.
This abstraction ensures that all PySoy's background threads remain GIL-free and will be useful for many implementations of "cloud gaming", which I'll go into more detail on later.
The largest task remaining is python-3.0.vapi, which will allow us to write the Python extension modules for libsoy. These will not be simple Python bindings which could be provided with PyBank as PySoy includes many complex Python datatypes which the gobject model cannot provide.