[dmitrygr]

why not

   pbpaste | qr-filetransfer /dev/stdin

[jakobegger]

Or even just

    qr-filetransfer <(pbpaste)

[daw___]

This is not going to work unfortunately, the program expects the arguments to be paths.

[zokier]

<() expands to a path:

    $ echo <(true)
    /dev/fd/63

[daw___]

Ah, you are absolutely right