Thank you! Custom icons - not yet. I’ve been mulling over how to do it on server and client that isn’t hacky and that plays nice with edge intersections (how edges will point to the bounding box of the icon/logos)

It’s definitely something I want to support.

Also, if you're using python today, take a look at https://diagrams.mingrammer.com/

It's pretty good - uses Graphviz under the hood, but supports many cloud icons/logos. Not completely sure if it allows you to provide any icon, but it wouldn't surprise me.

Yes, that's my ideal, but I use TS :)

Cool I’ll put this on my roadmap

Have you looked at PlantUML?

Yes, but is it "as [TypeScript] code"?