MacOS + Docker shenanigans

README.md

@@ -9,6 +9,14 @@ sloptrap runs the OpenAI Codex CLI inside a container with a predictable and loc
 
 > Tip: set `SLOPTRAP_CONTAINER_ENGINE=<engine>` if you need to override the default Podman requirement.
 
+### macOS setup
+
+sloptrap targets GNU userland. On macOS, install the GNU tools via Homebrew and the launcher will prepend their `gnubin` paths automatically:
+
+```
+brew install coreutils gnu-tar jq
+```
+
 ## Quick Start
 
 1. Place `sloptrap` somewhere on your PATH/shared drive (the helper Dockerfile and Codex binary are bundled and downloaded automatically).