Tailcat: Tailscale Without Tailscale, by Tailscale (tailscale.com)

Is it like iroh ?

This came up just a few days ago with ~130 comments: https://news.ycombinator.com/item?id=49452990

So this is like https://github.com/n0-computer/dumbpipe but built out of tailscale instead of iroh?

Yeah, similar idea to dumbpipe/iroh, but built on Tailscale instead