Try downloading https://cosmo.zip/pub/cosmos/bin/assimilate-x86_64.macho chmod +x'ing it and running `./assimilate-x86_64.macho foo.llamafile` to turn it into a native binary. It's strange that's happening, because Apple Libc is supposed to indirect execve() to /bin/sh when appropriate. You can also try using the Cosmo Libc build of GNU Emacs: https://cosmo.zip/pub/cosmos/bin/emacs
I get the same vfork message on Apple Silicon (M3), even though I can run the llamafile from the command line. And I can't find an "assimilate" binary for my machine.
On Silicon I can guarantee that the Cosmo Libc emacs prebuilt binary will have zero trouble launching a llamafile process. https://cosmo.zip/pub/cosmos/bin/emacs You can also edit the `call-process` call so it launches `ape llamafile ...` rather than `llamafile ...` where the native ape interpreter can be compiled by wgetting https://raw.githubusercontent.com/jart/cosmopolitan/master/a... and running `cc -o ape ape-m1.c` and then sudo mv'ing it to /usr/local/bin/ape
