Factorio Forums

Idea: make a new Combinator unit, that the user can freely compile using existing Combinators, that are combined like a blueprint.
Communication inside / outside could work via a number of Signal Connectors, that connect the Combinator logic inside with Signal Lines outside.
With that idea, one could slim down Circuit electronics and just use one Combinator unit instead of this:

Factorissimo supports Circuit connections. I don't like packing all my circuitry in this way, since it's cross-surface and the buildings end up being BIGGER than the circuit they replace.

Schall Circuit Scaling provides de-scaled versions of Combinators - pretty neat for making compact "integrated circuits".

Good Luck!