All existing attempts fell short.
So we fall back to plain old copying applications over.
Problems with alternatives:
- Symlinking: Spotlight doesn't index symlinks. Therefore one cannot use
Spotlight to find or open the apps. Also they don't show up in
LaunchPad.
- Trampolines: Apples Security & Privacy doesn't get the concept and
shows them with the wrong name. Having an app open during an update will
also make it show up twice in the Dock.
- Aliasses: Require either AppleScript (a permission we don't want to
have, as it easily bypasses Apples TCC) or extra tools (that would be
ok), but also Aliasses are not categorized as 'Application' by
SpotLight.
- Directory Hardlinks are not supported by APFS - but also wouldn't work
cross volume.
- clonefile also doesn't work cross-volume.
Which all leads us back to Don Copine and Pastone. *sigh*