>Показалось, что это такой runit/daemontools опционально внешне мимикрирующий под systemd.

Сщас... "внешне". Там план захвата Галактики.

https://jdebp.eu/Softwares/nosh/roadmap.html

FreeBSD/TrueOS rc.d conversion:

FreeBSD items with workalikes or replacements:

        accounting, amd, apm, apmd, archdep, auditd, auditdistd, automount, automountd, autounmountd, bgfsck, blacklistd, bootparams, bridge, bsnmpd, bthidd, ccd, chkprintcap, cleanvar, cleartmp, cron, ctld, ddb, defaultroute, devd, dhclient, dmesg, dumpon, ftp-proxy, ftpd, gbde, geli2, geli, gptboot, gssd, hastd, hcsecd, hostapd, hostid, hostid_save, initrandom, ip6addrctl, ipfilter, ipfs, ipfw, ipmon, ipnat, ipsec, ipxrouted, iscsictl, iscsid, kadmind, kdc, keyserv, kfd, kpasswdd, ldconfig, local, local_unbound, lockd, lpd, mdconfig2, mdconfig, mixer, motd, mountd, moused, mroute6d, mrouted, msgs, named, natd, netoptions, netwait, newsyslog, nfscbd, nfsclient, nfsuserd, nisdomain, nscd, nsswitch ntpd, ntpdate, othermta, pf, pflog, pfsync, postrandom, powerd, ppp, pppoed, pwcheck, quota, random, rarpd, rctl, resolv, rfcomm_pppd_server, root, route6d, routed, rpcbind, rpclockd, rpcstatd, rtadvd, rtsold, rwho, savecore, sdpd, securelevel, serial, sppp, sshd, statd, static_arp, static_ndp, stf, sysctl, syslogd, timed, tmp, ubthidhci, ugidfw, utx, var, virecover, watchdogd, wpa_supplicant, ypbind, ypldap, yppasswdd, ypserv, ypset, ypupdated, ypxfrd, zfs, zvol,

Слава богам, намерения c 200x-x так и остаются намерениями.