jl library of pure data externals and abstractions contains a collection of objects for sound synthesis, sound processing, gesture mapping, and generation of musical structures. It is based on the eponyme C++ library. Both are available on github as jl.pd.lib and jl.cpp.lib.
jl can also be installed directly from pure data thanks to deken.
project is a library of pure data abstractions and GUI modules targeted at building large projects for live performance, providing flexible mapping and preset systems, as well as some utilities like a soundbank and a live looper.
It is under heavy development, but previous versions have already been used successfully in live preformances. It is also on github.