"What zero-toolchain means

Reproducing these binaries does not require a compiler, assembler, linker, libc, package manager, or language runtime. Prompt2ELF still depends on an x86-64 processor, the Linux syscall ABI, the kernel's ELF loader, and a filesystem. The machine has not disappeared. The conventional source-to-binary toolchain has. ...

The longer-term direction is a small multicall executable, similar in spirit to BusyBox, generated directly from prompts and Linux syscalls."