Is your feature request related to a problem? Please describe.

PROXY protocol is nice to preserve client’s IP address.
Having PROXY protocol support in Anubis would be great.

Note: thanks for your amazing work <3

Solution you would like.

spec: https://www.haproxy.org/download/3.3/doc/proxy-protocol.txt
explanations: https://www.haproxy.com/blog/use-the-proxy-protocol-to-preserve-a-clients-ip-address

Describe alternatives you have considered.

No response

Additional context

No response