Sets up the shadow-dir pattern that omarchy-dev-link will use: when
/usr/share/omarchy-dev exists (as a symlink to a local checkout),
$OMARCHY_PATH resolves there instead of /usr/share/omarchy. The PATH
prepend then makes the checkout's bin/ override the package's
/usr/bin copies.
This covers every hot-edit surface that resolves via $OMARCHY_PATH:
bin/, default/, shell/, and themes/. Things that don't go through
$OMARCHY_PATH (udev rules, systemd drop-ins, /etc-installed configs,
plymouth themes, /etc/skel seeds) remain unaffected by dev-link and
require omarchy-dev-pkg-test to verify changes — which is also what
you'd want before shipping any of those anyway.
Ryan Hughes
0777b20967