Ask HN: Anyone interested in working on projects related to social causes?

I am a software engineer and want to form a group of like-minded software engineers to work on something that will make a difference on a massive scale (not immediately, but over a period). Moonshot ideas are not off-limits.

I have two ideas, but open to ideas from other engineers. We can bounce ideas across and decide what to work on as a group.

Anyone interested to work on new social impact open source project?