How can one build a visualisation like this?
And does something like this exist but for the web?
Anvanka provides detailed instructions here[0]. Nowadays I would also consider using Cosmograph[1].
[0]: https://github.com/anvaka/pm?tab=readme-ov-file#your-own-gra...
That's some buttery smooth navigation.
https://anvaka.github.io/pm/#/galaxy/python?cx=-2700&cy=377&...