ryanmaguire's Stars
libharu/libharu
libharu - free PDF library
memononen/nanosvg
Simple stupid SVG parser
3-manifolds/SnapPy
SnapPy is a package for studying the topology and geometry of 3-manifolds, with a focus on hyperbolic structures. It is based on the SnapPea kernel written by Jeff Weeks.
regina-normal/regina
The main source code for Regina
ryanmaguire/libtmpl
Library of tools for mathematicians and physicists.