Listen "server" on .sock

[UnveilTech]

Hello,
the doc indicates the server "s1" on ip:port as below:
# /etc/haproxy/haproxy.cfg
....
backend coraza-spoa
mode tcp
server s1 127.0.0.1:9000

do you think it could makes sense to also use a .sock (/var/run/coaza-spoa.sock), it could be nice to have that instead of having dozens of open ports on the computer and it might be faster in transaction..

thanks,
bye Fred