Loved it. You know, I was surprised that very few entries really explored "joined together" as "supply chain" (It was my second choice of idea), and I'm glad to see one that did it really well.
If I'm going to nitpick, I think that it's possible that it would have been even more satisfying if you had the player to discover the inputs/outputs on their own... then again, for a jam in the absence of playtesting you probably made the right call.
I hope you make a full game out of, there's a kernel of an immensely satisfying chill resource management game in there. And if you get a chance, play some of Carl Chudyk's "Innovation" for inspiration if it's not already in your physical game library.