Sam Isaacson

I was waiting on expression simplification, which I think is a current priority, but not really implemented yet. But I see no reason we couldn't write a separate code path...

I'm not aware that this is supported in ModelingToolkit yet, but if it is for DDEs we could add it here. For jump models there is https://github.com/palmtree2013/DelaySSAToolkit.jl which can simulate...

Sorry, are you saying DDEs now work in ModelingToolkit? If so, can you point me to an example?

Yeah, once it is supported in ModelingToolkit it will hopefully be straightforward to add here too.

I transferred your issue to DiffEqBio as it is more relevant here I think. I'm not sure I completely understand what you want to do in general, so I'll give...

So we’re part way now on this issue as we now have `merge!` on generated `ReactionSystems`. Still working towards hybrid models.

Looks like GraphViz may be fixed now too: https://github.com/JuliaPackaging/Yggdrasil/issues/1428, if so we can drop requires for it.

This will have to wait on https://github.com/JuliaPackaging/Yggdrasil/issues/4961 as I can't play with using the jll currently.

This is tricky because we might want to ultimately allow ```julia rn = @reaction_network begin k*B, 3*A --> 2*C end k rn2 = @reaction_network begin k, 3*A + 2*B -->...

Yeah, I was thinking about that too. Maybe `@default_network` or `@simple_network`?