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InitWare
The InitWare Suite of Middleware allows you to manage services and system resources as logical entities called units. Its main component is a service management ("init") system.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
What you're referring to as SystemD, is in fact systemd, not SystemD, systemD, SyStEmD, or any other variation. It is stated on https://systemd.io that the only official names are "systemd" (all lowercase even on the beginning of a sentence), or "systém D" on high holidays (whatever that means)
The GNU system was originally developed largely on BSD platforms, and 4.4BSD-Lite2, antecedent of all the modern BSD platforms, was a complete OS only thanks to these components from GNU: Emacs, File, Gas, GCC, Gawk, GDB, GROFF, and GZIP. Apart from FreeBSD (which is trying to appeal to anti-GPL vendors by removing as much GPL code as possible), I don't think there's that much antipathy towards the GPL from the other BSD platforms, and definitely not from DragonFly BSD or my native NetBSD.