AdGuardHome doesn't know how to daemonize

Hi, I am using v0.104.3 and noticed that AdGuardHome can't actually go into background. There is no "-d" or "--daemon" switch available and the process always stays on the terminal in the foreground.
This is not a problem in linux with systemd but it is a problem in NetBSD where startup scripts are based on shell scripts.
FreeBSD works around this by invoking AdGuardHome through "daemon" binary which is available in base system.
I asked around and there is no such thing available in NetBSD base system so currently the startup script I wrote uses /usr/bin/sh "&" at the end of the command which of course is ugly.
Most (if not all?) daemons I saw have a -d flag or similar to go into background. Would it be possible to implement this in AdGuardHome?

PS. I managed to build AdGuardHome on NetBSD with no fuss at all and prepared a pkgsrc package (currently in wip/adguardhome).