Looks cool. Is it safe to assume it’s just a typo/accident that the codes don’t seem to match here?:
The sending peer runs:
$ pcp send my_file
Code is: bubble-enemy-result-increase
On the other machine run:
pcp receive bubble-enemy-result-increase
The receiving peer runs:
$ pcp receive december-iron-old-increase
Looking for peer december-iron-old-increase...