We’ve enabled the tagging feature in Discourse, which is an additional and flexible method of organizing topics within and across categories. Feel free to apply and create tags to existing topics as you navigate the site. You can see a full list of tags, with links to the messages using them, here: https://community.tempest.earth/tags
Any user with trust level 3 or higher can create a tag. Here is some documentation on tagging:
https://meta.discourse.org/t/the-official-discourse-tags-plugin-discourse-tagging/26482