This is a great initiative, but it looks to me like most of these projects are directed to help the US. That's totally understandable, but there are many people all over the world willing to help with this, and it would be great if we could also collaborate to help everyone. For example, as an engineer, I was interested in helping with the 1M ventilators project, but reading the description it looks like the goal is…
The first one is global... all you would need is the files and a 3d printer. The second one is going to need a lot of work for getting it into every country that needs it.
You can contribute to both, and recruit anyone you can to work on the supply chain issues for getting it into spain.