Comment by WillAdams

For me, it's Bézier curves --- Freya Holmér has a wonderful video on them:

https://www.youtube.com/watch?v=jvPPXbo87ds

and I've been trying to read through _METAFONT: The Program_ and https://pomax.github.io/bezierinfo/ and I keep wondering if I shouldn't just try scripting Inkscape....

I want to do a couple of different things, and not sure if they all fit in one project or no:

- implement a single line font in my current project: https://github.com/WillAdams/gcodepreview

- implement a way to convert arbitrary curves into smooth arcs (for DXFs or G2/G3 arcs for G-code)

- work up an interactive version of METAFONT/METAPOST which allows both programming and drawing