How to propagate stdin from PID1 to a longrun daemon

[f18m]

I'm using s6-overlay in an HomeAssistant addon I'm writing.
One way to send data to the addon/container is to send it to the container stdin.

Since I'm using s6-overlay, the PID 1 of my container (or the entrypoint) is /init and I think this is the script that will receive any stdin byte.
I would like to ask s6-overlay to relay all data from stdin to a longrun daemon registered in s6-overlay. Is that possible?

Thanks!

[skarnet]

It's currently not possible, but since it's a common request, I'm going to write a utility that does that at some point. No guarantees on the ETA though.

[f18m]

Ok thanks, shall I close this ticket then or we can leave it open for others ?

[skarnet]

Since it's a genuine feature request that I plan to address at some point, you can leave it open.