@raul Looks nice but, sadly, VC-funded and – please correct me if I’m wrong – closed source.
So either it will have to exit (get bought by a bigger fish or IPO) or fail fast (goodbye all your diagrams).
Best of luck with it but I’m going to stick with the open source tool where I can save stuff locally (note tldraw is also VC-funded so it’s not perfect by any means but at least it’s not proprietary) :)