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![](https://lemmy.dbzer0.com/pictrs/image/a18b0c69-23c9-4b2a-b8e0-3aca0172390d.png)
This is the answer. There are free indexes out there like https://binsearch.info but thanks to automated DMCA takedown bots, there’s very little on “open” usenet that stays up for long. You need to get on a private index and, unfortunately, pay for a subscription to get any kind of reliability.
I’ve never seen an invite pop up for materialize anywhere. I’d gladly trade for one, but I guess it’s fucking unobtanium. I’ve not found any other sources either, and I’ve looked.