This is also an experiment
No worries, and thanks again. For* some time later*:
Did your printer name contain spaces? This may be another issue.
I’ve updated my GitHub to use the folder /tmp/ for osx. If this doesn’t work then I assume that lp (or lpr) are not configured to the default printer by default, or perhaps there is some security setting(s) preventing access to the temp folder.
I’m hoping some osx-legend might contribute to our endeavours
Added: The printer settings may need to be adjusted to accept TEXT input.
Finally: If/when you get a chance can you type lp pathtosometextfile.txt in Terminal to see if it prints.