Lua Bash is a bridge between GNU bash and the Lua scripting language. It allows replacing hot and complex code paths that formerly would be written in awk, sed, or even Perl with run-time efficient Lua code. It was developed and is used in the T2 SDE to accelerate code fragments that became too slow over the years.
SAOTrace is a suite of software designed to simulate the as-built performance of grazing-angle X-ray optics using the ray-tracing approach. It is derived from portions of the NASA OSAC (Optical Surface Analysis Code) software suite. It can model nested conical as well as flat optical designs, and includes the ability to model arbitrary support structures and baffles. It can model non-ideal multi-layer reflective coatings as well as scattering from the optical surfaces.