Experimental Mac test app — source v0.2

Experimental Apple silicon Mac source kit, intended for the first real M4 test.

Extract the ZIP, enter the extracted focus-isolation directory in Terminal, and run:

bash Build.command

The build produces and opens macos/build/Focus Isolation Probe.app. It includes an ARM64 Linux installer picker, managed guest disk, native session/report menu, and read-only diagnostic media. An ARM64 Linux installer ISO and Chromium inside the guest are required for browsing tests. Apple command-line developer tools are required for compilation.

This is a source release, not a precompiled application. Swift compilation and focus-isolation behavior have not yet been verified on a Mac. The app is not Developer ID signed or notarized, and is not the complete commercial product. Focus/visibility acceptance tests A–D remain pending.

The ZIP contains the committed app source, diagnostic harness, evaluator unit tests, and acceptance/security/release documentation. It excludes VM images, private transfer files and credentials. The accompanying SHA-256 file verifies the ZIP download.