hello! i'm new here...so just a brief intro before a question. i work at omnisci (formerly mapd), where we've built a GPU-accelerated SQL db/engine (the core of which is open source) that can power interactive data viz at scale.
we've been working within the vega/vl ecosystem a fair bit particularly via the pydata stack with altair (and also use vega in somewhat modded form under our server-side rendering of large geo datasets). we have a d3-based charting lib (i dont know a whole lot yet about it)
OmniVegaLitecomponent that users can install and point to the correct endpoint
[var name:"step" value:0 /] [Scroller currentStep:step ] [Graphic] [CustomD3Component /] [/Graphic] [Step] ... [/Step] [/Scroller]