Searches peter out around 2017/2018 for people trying to do what you want to do. the qanta screen was interesting but it didn't become ubiquitous, so its down to the scavengers who have an olpc and want to hack. Circuit diagrams I think will be easy, block-logic-structure stuff.

I did find people who cheated and used X $DISPLAY. I don't think thats quite the goal here :-)