Hi!
I like this mod, each seed is randomized makes Factorio a whole new challenge!
However, after playing a bit with your mod I found an issue.

Sometimes, to craft Iron Plate you need 1xCoal as fuel and 1x Iron ore as material (All good)
BUT, at the same time, to craft Stone brick you need 1xCoal as fuel and 1xCoal as material!

The problem is that sometimes the furnace will consume coal and craft stone bricks, sometimes it craft iron plates and it's a mess.

Suggestion: Implement the select material output for furnaces, similar what Krastorio 2 mod have to avoid this.

Check screenshot of the issue: https://imgur.com/A9Mkz8u or https://i.imgur.com/A9Mkz8u.png