The Julia package previously known as Lie.jl has been renamed to
Semisimple.jl.
This was needed,
because the Julia registry rejected the name Lie.jl as being too short.
I doubt many people have started using the package,
I just have some renaming to do in the (not yet public) downstream packages.
The package should within the next 3 days be part of the Julia registry, so that you can install it in the usual way for Julia packages. Stay tuned for an update on that!