> I can not even find up to date information on how to *install* current
> working FFI.

Look no further than the "head" version of "FFI" on SqueakMap.  You
can install it straight from the menu or select "Edit Release" to see
the script it uses to load it.

We've been so lulled into things being undocumented that, even when
they are, people don't find it because they don't think to look.