I too am interested in this. I work at a sort of intersection between traditional backend systems and industrial controls so I see a lot of Java/C# and a lot of Ladder Logic and SFC.

SFC in particular is as close to visual programming as I've seen be feasible and one can accomplish quite a bit with it.

I wonder how feasible it would be to develop a visual programming language that worked a bit like stringing together blocks that worked like pure functions where each block was, internally, just a function written in some language. Like some unholy marriage of SFC and Scratch.

PS: What keyboard are you using for the Thorpe character?