/etc/init/cups.override is in lxc-android-config 0.162.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | # cups - CUPS Printing spooler and server
# socket activation overrides for touch
start on socket PROTO=inet PORT=631 ADDR=127.0.0.1
exec /usr/sbin/cupsd -f -x 30
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