Ask HN: Good online communities to learn about Green / Sustainable Computing?

To learn more about and interact with like minded folks on the topic of Green and/or Sustainable computing, where does one go to online? Some examples I found: - Green Software Foundations' various project github repo discussion groups - https://wiki.greensoftware.foundation/governance/projects - Cloud Native Computing Foundation Environmental Sustainability Workgroup's github discussion group - https://github.com/cncf/tag-env-sustainability - Sustainable Living at Stackexchange - https://sustainability.stackexchange.com (the green computing related posts are more limited in numbers it seems) More suggestions and opinions is most appreciated!