[ANN] SystemsOfSystems.jl, a simulation engine

Hi all. I’d like to announce a new package for simulating models that contain models that contain models, etc., where the models can have both continuous and discrete parts. I needed a system like this to work with modular components of control systems, and it has been working well for the teams I work with, so I hope it can be useful to the broader community. As a teaser, here is an extremely simple, one-model simulation: using SystemsOfSystems constants = (; mass = 1., kp = 8., # Pr...