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…
Also, it may be more effective to concentrate everyone in one project that starts with the US since it has the most resources (technology, medical, science, etc) and then send out the results rather than having sparse groups trying to do the same thing for all different areas of the globe.
Best to build a prototype for a focused set of problems and users, then expand out once you have success there. Difference between needing 750k ventilators and 200m ventilators and also simultaneously having to solve all the global regulations, shipping, distribution, customs, etc.