> 100/10 for mobile usability. Panning, Zooming, selecting and moving was so seamless I thought I was tripping out.

Yeah, my first thought was that the diagramming bit needs to be ripped out into its own library, because I can see a use for the diagramming bits for more than ER diagrams.

The whole code base is a breath of fresh air to be honest: https://github.com/royalbhati/sqltoerdiagram/blob/main/src/m...

Author is top notch in my book. I'm a sucker for someone taking a complex problem and distilling out a simple solution. I don't know of higher praise to give a developer.

That's really good yes, even double tapping editing does not reset the zoom level. Definitely one of the best mobile friendly site I have seen.