Hi jagoly,
we have a pyanodon run in HARDmode by notnotmelon.
Currently at py3 science - just unlocked nexelite trains.
Would you be interested in testing your mod on this map - maybe create a small track somewhere?
From there, we could make blueprints etc. - it seems that some users might find that useful.
we currently use Cybersyn there and for some parts vanilla.
The issue is exactly what you describe - byproducts. ergo the 2 networks.
SSPP seems to be able to solve that.
I seem to understand the need of setting up the system as you descibe - however for py with hundreds of products - maybe there could be some sort of default setting to get started for each of the product?
I do believe that the map might be a nice test run.
Let me know what you think, I will link you the discord chat if you want.