I found that font extremely hard to read for some reason (on my phone). So I gave up. Maybe due to you using a monospace font for non-code?
But I believe smalltalk represented code as functions in a database somehow, so maybe that is worth looking at.
> So I gave up.
Try your mobile browser’s reader view mode.
That is JetBrains Mono. HN is using Verdana, I believe, that one is recommended as the most usable common font.
Smalltalk is ancient. I would say, Unison is an interesting recent experiment, and there are others. But, I am interested in universal revision control, any language.