Background
- https://en.wikipedia.org/wiki/John_Hoskyns#The_Stepping_Stones_Report,_1977
- https://thecritic.co.uk/thatchers-wiring-diagram-and-why-we-need-it-once-again/
Graphviz, see it in the browser: https://jtewright.com/wiring_diagram
Figma
Original (redrawn by Ron Clouse)
