I suggest (and if noone objects will do it)
renaming the "openlilylib" repository to "snippets"
-> https://github.com/openlilylib/snippets
NOTE: This may require users to adapt their repository set-ups and
LilyPond include path settings
creating a new repository
https://github.com/openlilylib/oll-core
where the stuff from /ly/_internal will be moved (reviewing a number
of things along the way)
Regaring the location of the individual libraries, what would you
consider best:
adding all beside oll-core
(keeping the option that anyone creates libraries in their own place)
creating a new openlilylib sibling organization for that purpose
Just have library maintainers maintain their repos in their own
namespace
(providing a central listing of available libraries in some place, of
course)