Instructions for running the SimpleXMQ servers as system daemons:

The package installs rc.d scripts for both daemons:

- `smp_server`
- `xftp_server`

Each server must be initialized once before its first start so that
configuration, certificates, and state directories are created.

Example:

```sh
doas rcctl enable smp_server xftp_server
doas -u _simplexmq /usr/local/bin/smp-server init
doas -u _simplexmq /usr/local/bin/xftp-server init \
    --path /var/simplex/xftp-server/files \
    --quota 100gb
doas rcctl start smp_server
doas rcctl start xftp_server
```

The servers store configuration under `/etc/simplex/` and runtime
data under `/var/simplex/`.

The OpenBSD port defaults XFTP certificate generation to ED25519 because
LibreSSL does not provide ED448.  ED448 can still be selected explicitly
when using a compatible openssl(1) implementation.
