I was exporting a sound for testing and I just did

export .wav

And this made the file ".wav" which is great and all.. But on mac files starting with . are hidden..
So I'm not sure if this is a issue or not but I had to check if it existed with a ls -a
And I guess I'll go delete .wav and .png that are just sitting around...
(Oh! and also forgot to mention since pico takes this . hidden stuff for .DS_Store and such into account I couldn't find it with ls either.)

Yeah this is an old and common Unix convention: "dotfiles" are hidden by default and used for hiding files that applications don't believe users should know about, or at least deal with regularly. Command line and windowed tools tend to hide them by default. (".DS_Store" is macOS specific, but dotfiles in general are common to many operating systems.)

Are you suggesting that PICO-8 avoid creating files with names that begin with a dot (i.e. that export should be an error)? Or are you suggesting that PICO-8's built-in ls command/function have some support for showing dotfiles?

@dddaaannn Well... I don't think pico should show hidden files probably, but I'm not sure if I like exporting something without a name, And then having issues and junk laying around.

I think maybe "export .wav" should say "please give file name thank yous" or something :I

(Exporting a file and then not seeing it show up is kinda distressing)