Mainly, the roboport is causing massive lags - this is due to me going for a different approach with tech in this mod, so parts of dead code got resurrected when I changed some item names and didn't check the parameters assigned to them properly, as I didn't understand the values at the time.

This will be fixed in the upcoming fixes. It probably won't crash your game, just be wary of the parameters of the items you're crafting until then.

I'm terribly sorry; this oversight is my mistake.

This should now be fixed with the introduction of 1.2.0, where roboports were redesigned as multiple-tier tech with different parameters for each tier.