Haha of course, the surprise "oh look it's me" moment doesn't get old!

So exciting!

I'm not actively updating the demo at the moment, just working on full game content. But there will be an update to the demo closer to release!

The way it works currently is the fluids move through the standoffs (the structures that hold racks in place). No need to build external piping, everything remains neat and tidy. You just open the outlet valve on one rack, open the inlet on another, and the contents will flow.

That sounds cool! I actually haven't tried Orbiter... been getting into Reentry recently though, just with Apollo.