WireViz creator here!

Be the change you want to see in the world :-) Having WireViz integrated into KiCad, with a dedicated GUI, would be amazing!

As a Mechanical Engineer, I'm very happy to see designers discovering the joy of parametric CAD :-)

I have longed for this sort of functionality in tools like Inkscape, and have often resorted to SolidWorks, Fusion360, SolveSpace, or other engineering-focused tools for "artistic" projects, because they enabled me to quickly iterate over different parameters while respecting certain constraints and relationships (as shown in the original post).. Once I was happy with the result, I would export the design as DXF or similar, and do the final styling in Inkscape.

Might also be of interest, an interview with the head designer of the 6502:

The Amp Hour Podcast #241 An Interview With Chuck Peddle – Charismatic Chipmaking Coryphaeus

https://theamphour.com/241-an-interview-with-chuck-peddle-ch...

As a European, I use Misumi for all my hardware needs. Awesome selection of standard and configurable parts, CAD models, sample application, etc. They're originally Japanese but have warehouses in the EU as well.