Tailscale 推出了一个 Peer Relays 功能测试，可以将网内的任何节点直接设为中继节点，在直连不通时候的连接优先级高于 DERP 中转服务器，用于提供更低的延迟和更高的吞吐量。
https://tailscale.com/blog/peer-relays-beta
https://tailscale.com/kb/1591/peer-relays
https://tailscale.com/blog/peer-relays-beta
https://tailscale.com/kb/1591/peer-relays
Tailscale
Tailscale Peer Relays: High-throughput relays for secure, flexible networks
Tailscale Peer Relays provide predictable, performative access, entirely within your own tailnet.
