Really nice project, I'm a huge sucker for anything with a terminal in it. Loved the iron lung influence.
Even though the game doesn't have any bigger threat, the limited view really helps to fill the gap. I think you have a great opportunity to mess with the player in playful ways, great base idea.
The initial is explanation may be a bit excessive considering how simple the game ends up being. I think you could cut that in half and let the player figures most things out with a simple command list.