I just made public the repo for my first package, TaylorInterface.jl. This is an interface to taylor, a Linux tool for transforming equations for a vector into a highly efficient C numerical integrator, with arbitrary order jet transport. With this package, you can take advantage of taylor by calling it, compiling the C files and opening the resulting library without leaving Julia.
As a comparison, for the restricted three-body problem, without jet transport, there is a factor of roughly 40 in speed compared to TaylorIntegration.jl. I haven’t made strict tests with jet transport included, but the factor should be even higher.
As I said, this is my first package, and far from release-ready. However, I would be very happy to welcome feedback, tips and any constructive criticism, hence the public repository.