Be very careful with what you'd wish for : kanbans in a bakery are actually a thing. And such a bakery can be very successfull ;-)

https://www.lean.org/store/book/the-lean-bakery/

Just to point out, but the manufacturing line kanbans are about the reverse of the software development kanbans, and the kinds of pressure they apply are also completely different.

They share the same fundamental inspiration. It's just that the work is very different.