Announcing a meetup groups new events on slack?

At my company, I run a guild around a particular community. I’d like to announce a certain external meetup’s events on this slack channel, so my guild can stay connected with the external community. For example I want the search practitioners in my company to be aware when the next Haystack Live meetup is, without me copy/pasting constantly to different calendars.

One easy way to do this would be if Meetup had RSS feeds per meetup for upcoming events. But I can’t find that. It seems meetup only lets you subscribe to an RSS feed of your own events.