Use OpenRC [0] [1] as package base and keeps Systemd [2] [3] package as optional choosing,
because Systemd is bloatware [4] [5] [6] [7] [8] [9] [10]

• contains bootloader, with is useless on some hardware
• imposes logind and journald and it can't be replaced with other software
• contains systemd-networkd, that is useless
• contains machinectl and others useless software
• useful only with GNU/Linux (and glibc only), it's doesn't works with another future GNU variants such as GNU/Hurd, GNU/k*BSD*, etc.
• it is an automated software, therefore there are stuff working as background processes [11] without user intervention
• if the systemd is down, you need restart all the system.

For further details: http://without-systemd.org/wiki/index.php/Arguments_against_systemd