This directory contains the OS-specific installer layer used before the portable Codex payload is applied.
common/: shared shell helpers for OS detection and payload resolutionlinux/README.md: Linux installer entrypointsmacos/README.md: macOS installer entrypointswindows/README.md: Windows installer entrypoints
The installer layer is separate from the mirrored runtime payload under codex/os/*/runtime/.
Installers prepare the machine-specific CLI prerequisites. The runtime payload restores the portable ~/.codex state.