I’ve fixed it! The bottom of the door is attached to a quarter circle panel, which slides into a slot under the floor when the door is closed, and provides a temporary floor when the door is open.

A stoic is a boid that brings babies

You build your track dead straight - like, not conforming to the surface direct through the crust straight. Now the train accelerates downhill for the first half of the journey, and decelerates uphill for the second, neatly coming to a stop at the destination. Oddly enough, in the spherical cow universe where you build this, all the maths cancels such that you get a constant travel time regardless of the start and end locations. On earth it’s about 40 minutes

Stab a knife into it to indicate the location where shit’s going to go down.

I would walk into those pillars multiple times per day