/usr/lib/pd/extra/nusmuk-utils/pps.pd is in pd-nusmuk 20151113+repack-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | #N canvas 0 0 450 300 10;
#X obj 55 24 inlet;
#X obj 55 43 list prepend set;
#X obj 55 65 list trim;
#X obj 55 87 outlet;
#X connect 0 0 1 0;
#X connect 1 0 2 0;
#X connect 2 0 3 0;
|