Procd respawn, how is it useful?

[hnyman]

Respawn is for daemons.

@ValdikSS

want it to be robust, especially upon boot, where the script may start before the network is fully configured. This is not a long-running script and not a daemon.

Sounds like you are not really looking for restarting the service, but waiting with the start until the network is up.
There are a few services like that. Search the forum e.g. for "ubus wait"
E.g.

[Solved] Start init script at boot after localhost is ready

Hi, I want to start an init script at boot after the network (specifically localhost) is up. Using START=95 at the top of the init script does not work. I have added sleep loop, but this seems kind of an ugly solution: start_service() { # wait for localhost while ! ip -4 a s dev lo | grep '127.0.0.1' &> /dev/null; do sleep 1 done

Or your script might first sleep for a few seconds.