Looking for recommendations from the HN community on where one would start.On the technical side I'm interested in suggestions regarding:* Open Source / Community Projects* Companies / Organisations / Startups working on promising innovative research or products in disruptive sustainabilityOn the community / activist side, I'm looking for:* Activist groups that lobby for change and sustainable practices, where computer science skills might be able to contribute* EU / UN projects where such a skillset might be usefulAny other general advice welcome. I'm tired of writing code for ad-tech while the world burns, and I suspect there are others like me who would like to get more involved, hence this post.