On Fri, Apr 12, 2019 at 12:26:02PM +0300, Lassi Kortela wrote:
> (In case any Scheme implementors are reading this, it would be nice to have
> a standardized S-expression file that each implementation could put in its
> source release to tell things like what SRFIs are supported, version number
> and the like. If you want to work on such a standard, please tell us :) It
> would probably be very lightweight, just one file.)

I think this is not very useful.  In CHICKEN, for example, a large number
of SRFIs are implemented as eggs (add-on libraries), often by third party
uthors (ie, people not working on the core system).

See https://wiki.call-cc.org/supported-standards for the list of supported
SRFIs per version.

Cheers,
Peter