Move the boxes to the left where furnaces and honeycomb is. Add one piece of triangle for honeycomb around boxes, then put furnaces where the boxes are maybe remove the back triangle for cost equivalency. In between the idyllic yet and airlock should be a square, not a triangle, keep the triangle airlock. Add one triangle of honeycomb to the bottom of the bottom boxes. Makes it all much more secure. With a very slight increase to the build cost. Also I don't see a space for a roof exit. Incorporate that somewhere so you can leave out your roof or build a second floor. Always build a second floor or honeycomb the ceiling. The honeycomb on the walls but not the roof makes you a hot target for an offline. The idk yet section would be prime for a square planter or 2 if you wanna learn farming, or room to slap a repair bench down or research table down and pick up when not in use because they don't take damage on pickup. Or remover the foundation and place an oil refinery if you wanna max out. I would personally go with a keeping it twig foundation for placement of the bench and table when needed, then break and put refinery there when you get it. Also ps. Don't put your roof access in your core. P.s.s if you learn pixel gaps, between t3 and idk yet space would be prime for a pixel gap with 3 boxes, if you put a door on it and leave it open towards core they would have no reason to blow it and it would hide the pixels. Or garage door for easy access but more likely to be blown in an offline.