Crafting items with multiple steps its hard to see which resources you might need. For example assembler 3, it requires speed module and assembler2, but what raw resources are actually needed?

I wonder if this would be readable or if there is a way to make it more readable. Just raw ingredients in the crafting menu is frustrating.

It could be expandable on demand with key press.
Hover - show only count
- first key press show recipe with first level ingredients
- second key press expand recipe and show all ingredients down to raw ones

This seems indeed a bit too much.

Your suggestion with the keys could work.

Vanilla does it quite nice, to show a "Total raw" when you hover over a recipe.