I think this is a great concept! The audio is a good fit and the terminal-style graphics are a nice touch. The gameplay does seem a bit lacking. Everything drained noticeably faster than I could refill it, and I only felt like I was delaying the inevitable. Systems sometimes went down even if they were replenished and there were no events.
This would be better if more strategy was involved. As others have said, I usually just chose to replenish the lowest system. You might also consider adding a limit to the number of events that can happen at the same time. Multiple times I had four occur in a single day. I’d love to see where you take this. Good work!