Portable VO preferences

[cmorten]

Support VoiceOver Portable Preferences

Use a generated read/write DMG to isolate GuidePup’s VoiceOver configuration from the host machine.

Setup

Create the DMG:

hdiutil create
-size 100m
-fs APFS
-volname GuidePup
~/.guidepup/voiceover.dmg

Mount the DMG:

hdiutil attach ~/.guidepup/voiceover.dmg

Copy the bundled portable VoiceOver preference fixture:

cp -R fixtures/voiceover-portable/* /Volumes/GuidePup/

Perform the one-time VoiceOver “Set Up Portable Preferences” flow against the mounted volume.

Unmount:

hdiutil detach /Volumes/GuidePup

Runtime

Mount before starting VoiceOver:

hdiutil attach ~/.guidepup/voiceover.dmg

Start VoiceOver. If the volume has been configured as “Always use this drive”, VoiceOver automatically switches to the portable preferences.

After tests:

hdiutil detach /Volumes/GuidePup