I've made a video demo and posted it on YouTube.
Short clips from the video are also on Instagram and TikTok. It's a very simple pattern, and here's the diagram:
An example of the 20mm links used: https://www.firemountaingems.com/itemdetails/H205131FY
Short story: I happened to be wearing a pair of these earrings while hiking on the Hank Aaron Nature Trail in Milwaukee. I passed a group of teenage students on a field trip there, and one of them said, "I like your earrings!"
That made my day and inspired me to put the tutorial online. I hope you'll enjoy!