The pico-8 manual mentions the following argument to the "pico8" program:

  -p param_str             pass a parameter string to the specified cartridge

but I can't find any mention of how to access that parameter. I was thinking it might be passed as an optional argument to _init(), but that doesn't appear to be the case; and PICO-8 doesn't expose lua's standard arg array.

How can I access that string?

I'm running on Mac OS btw, invoking the binary directly with:

~/Applications/PICO-8.app/Contents/MacOS/pico8 -p foo -run path-to-cart.p8

This seems to make the keyboard keys unresponsive (except a few, like return), not sure why...

stat(6)

It's in the manual in the stat section, but a bit hard to find :)

Ah, okay, awesome. Thanks!