Here's an invite to my closed instance that any HN user is welcome to take advantage of: https://cmpwn.com/invite/7CA9J3mq This is good for 25 uses, if it runs out and anyone missed it just let me know.

For the most part it's tech folks talking about tech, though the federated timeline is naturally more diverse. If a bunch of HNers join up, even more so. It is what you make of it, you shape the local culture as much as anyone else.