I noticed Ultracube lacks a few things 2.0 added:
- Mirrored manufacturing machines
- Circuit connections to manufacturing machines
(there might be more, this is mainly what I noticed so far)

Is this intentional? Or just "leftover" from being an 1.x mod that is ported?
If these additions are something the mod developers wouldn't mind having in the mod, I can put some work towards adding this.

Circuit connections to machines can be enabled via a mod setting.

Ah, ok, thanks. Didn't notice that. Should have checked that.

I also noticed it's just the 4x4 fabricator that cannot be mirrored. While other assembly machines can be mirrored. (mirroring a particle accelerator build can cause some problems with power connectors)