I'll check it out, thanks for sharing! Looks promising from one one minute scan. In a similar vein (also have zero affiliation) I discovered https://whimsical.

I'll check it out, thanks for sharing! Looks promising from one one minute scan. In a similar vein (also have zero affiliation) I discovered https://whimsical.com https://whimsical.com today, which also has a few other promising looking tools like flow diagrams, post-its etc.