This site, list, and general orientation of 'tech for good' applied towards CV19 is very likeable. Especially so at a time where there is going to be excess brain capacity on the sidelines due to layoffs or those now working from home who have spare time & motive to do something and feeling helpless.
The economic + remote labor shifts definitely open up more resources for side/volunteer stuff for those, like me, wanting to help this cause but not sure how or where to begin.
After reading through and clicking on a few projects of personal interest, my feedback for those listing who seek to increase their chances of success and maximize impact would be:
(a) make the 'how to get in touch' more consistent/accessible. An email contact should be standard. Just give me an email address and i'll give you mine, we'll go from there.
(b) consider thinking bigger and broader in terms of 'looking for'. It takes much more than devs/languages to get something real off the ground, scale it, and actually solve a real world problem. Designers, PMs, marketing, strategy, people with capital and connections... Not that it's fast or easy to find these things, but understanding the scope of what you will actually need to succeed upfront will only expand your funnel and give you options to evolve and grow by tapping into diverse expertise as the product is built.