On Mon, 19 Aug 2019, Sven Schreiber wrote:
 Hi,
 at the conference we agreed that in the future contributed function
 packages could use 'foreign' blocks that use R. (Just to be clear: the
 big difference here is "contributed". A function package per se can
 already use whatever is possible in hansl, for private use. But
 currently it won't be accepted to the package server if it relies on a
 foreign language.)
 We also discussed that the package author must specify the version
 requirement for R itself and then specify the needed R packages (along
 with their own versions). I would like to propose a way to put this
 information in the package's spec file, something like this [...] 
Thanks, Sven for the reminder and the proposals, which make sense to
me.
Right now I'm busy finalizing native complex matrix support (to be
paraded out before long), but will get back to this when I can.
Allin