Letsencrypt/acme.sh/socatについて、ここに記述してください。

port なし。

{{{
/!\ ERROR: /!\

Ports Collection support for your FreeBSD version has ended, and no ports are
guaranteed to build on this system. Please upgrade to a supported release.

No support will be provided if you silence this message by defining
ALLOW_UNSUPPORTED_SYSTEM.

*** Error code 1

Stop.
make[1]: stopped in /usr/ports/net/socat
*** Error code 1

Stop.
make: stopped in /usr/ports/net/socat

}}}

https://github.com/freebsd/freebsd-ports/blob/master/net/socat/files/socat.in

# Add the following lines to /etc/rc.conf to enable socat: