Conversation with a backend co-worker.

Me(Frontend): Here! The POS printer (for development purpose) has arrived! It supports Linux and Windows as mentioned on the box. I've sent you a decent npm package (escpos). Try to print a barcode with it, I'll sync with you tomorrow.

(Next day at noon)

Me: Whatcha doin?
Backend guy: Trying to set up the printer.
Me: ON YOU MAC?
Backend guy: Yes.

I try be as helpful as I can to anyone but it seems like this guy actively looks for a way to invent problems!