OSS
Tailscale open-sourced tailcat, netcat over its WireGuard data plane with no account, no tailnet and no control plane, to 594 HN points and zero releases
tailscale/tailcat is a BSD-3 Go CLI that gives you point-to-point WireGuard tunnels using magicsock, NAT hole-punching and DERP as relay-of-last-resort, without a Tailscale account, login flow, tailnet or assigned IP: one side runs the listener and returns a short token, the other side pastes it. The HN thread hit 594 points on 2026-08-26 and the repo sits at 1,316 stars with 22 forks, no tagged release, and its most recent commit at 2026-08-27T01:41Z clarifying that browser tailcat is DERP-relay-only. Tailscale says broader rollout follows a beta, so the repo is currently the whole product.
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