I've used this before -- it works well and integrates nicely with markdown, which makes it more convenient than using draw.io for plenty of use-cases imo
> > There is a lot of empty land in the world that isn't useful for people to live in or to grow crops due to lack of rainfall, which also makes those sites more valuable for solar energy.
Also if you accidentally let your Prime roll over for another month and you try to cancel a few days later without having bought anything that month, they'll offer to refund the most recent payment. Happened to me a few weeks ago, I was surprised.