DSP is pretty good, definitely feels like 3d factorio but has a bit of a different philosophy on how production and logistics work. The latest major update added enemies and military management to the game, which gives it a better focus for your production.

Either trueNAS or unraid work as a vm in Proxmox, but there’s some caveats. You have to pass the whole hba/lsi pcie device to the vm so you can’t split the backplane of the server.

Those don’t seal well, so probably not

Aircraft maintenance has been doing the negative pressure unlock tests on cockpit doors for decades, its honestly surprising what isn’t common knowledge. Like others have said, rapid decompression of only a portion of the aircraft is very bad, and will result in massive structural failure as individual compartments aren’t pressure rated and will blow apart. The doors I’ve had experience with had large panels that would pop out when in a negative pressure event.

I had to do a double take, I have almost exactly copy of that cat tree and 2 voids, a short and long haired one. Was starting to wonder where my third cat came from. Good looking kitty friends, and they seem very happy with the new perch