Just started playing recently, quite interesting but I'm think the UI could be a little clearer.
I thought the button to start removing shrapnel didn't look like a clickable button at first, it looked more like a tutorial prompt or tooltip. I think it might be clearer if it was perhaps presented as:
Shrapnel [Remove]
With the [Remove] button inset into the text box.
Also, I think a [Create] button right underneath the large icon of what you want to craft would be clearer than needing to hover over the icon to find a tiny tooltip that clarifies that it's the create button. I had played the tutorial beforehand but I was blanking on how to finish a craft once I started a proper run.