FreeBSD rcd script running hbbr as service. Service user, group, pid, running directory handled.
Crate.io package local-ip-address from v0.5+ is Freebsd compatible, eg. it compiles and works. Simply changing the version to v0.5.1 in the Cargo.toml was possible to make a successful release build on FreeBSD 13 with prepackaged Rust 1.67.1.