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Subject: s6 style "readiness notification" with perpd
Date: Fri, 26 Apr 2019 03:25:40 +0200
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does s6-supervise listen to the given "readiness notification" fd ?
seems so to me.

that is the reason s6 style "readiness notification" would be hard
to do directly with perpd since it is a more integrated solution
that does not use intermediary supervise processes.

right ?