Hopefully it will be nosh and not launchd. nosh can also import systemd units, so it's a good way to support daemons predominantly developed on Linux+systemd.
nosh can also import Warden-configured jails. They become individual native services, separately controllable with service start/stop and with parameterization adjustable with rcctl set/get .
It furthermore provides a FreeBSD jails extension to the systemd unit file syntax. The JailID=i setting for a service unit is translated into "jexec i" in the native service bundle's run program.
It furthermore provides a FreeBSD jails extension to the systemd unit file syntax. The JailID=i setting for a service unit is translated into "jexec i" in the native service bundle's run program.