Awesome, I had no idea this existed and was free! Recently had to do a few diagrams and Google Drawing is just too basic so ended up using Lucidchart, but for the tiny amount of diagramming I do, it’s too pricey. This looks perfect so thanks for sharing.
Also I thoroughly enjoyed your post, well done on explaining a potentially complex area so clearly - I’ve signed up for future posts!
Cool! I’m glad that the link was useful! Another alternative that I’ve been using and that I liked is https://sketch.io/sketchpad/. Also pretty good tool (online and free)
