Modia.jl is built by Hilding Elmquist, Martin Otter and their collaborators. These are some of the best folks in the world - Hilding's thesis in 1978 described equation oriented modeling. It had to wait until computers became powerful enough in the 90s to become broadly usable.
We've had the benefit of learning from them and their presentations at JuliaCon and collaborating. More is coming. In the meanwhile - do see this JuliaCon talk by Hilding:
https://people.inf.ethz.ch/fcellier/Res/Soft/Dymola_engl.htm...
We've had the benefit of learning from them and their presentations at JuliaCon and collaborating. More is coming. In the meanwhile - do see this JuliaCon talk by Hilding:
https://www.youtube.com/watch?v=hVg1eL1Qkws