How do I add a news feed to a Matrix channel?
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    You must be an Admin in the channel. Find this out by going to the channel and selecting Room info –> People, or clicking on the little circle images of people in a channel. Admins can make other admins. 
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    Go to Room info –> Extensions –> Add extension –> Feeds 
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    Under Subscribe to a feed, add a URL from this GTN feeds listing. Make sure that it ends in .xml. For example,https://training.galaxyproject.org/training-material/topics/community/feed.xmlwould provide updates on any community-tagged GTN materials into the Matrix channel.
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    Under Template, change the existing text to the following: $LINK: $SUMMARY
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    Provide a reasonable name, and then hit Subscribe! 
Details from Matrix are here: https://ems-docs.element.io/books/element-cloud-documentation/page/migrate-to-the-new-github-and-feeds-bots
