The shell variable $UIDS accumulated UIDs with literal \n (two chars)
instead of actual newlines. printf "$UIDS" wrote garbage to
/proc/vpnhide_targets and vpnhide_uids.txt. The empty-targets case
used bare > redirect which never triggers the proc write handler.
Fix: accumulate UIDs with real newlines (like service.sh does), use
echo "$UIDS" for output, and echo (writes \n) for the empty case so
the kmod write handler fires and clears the UID list.
Affects: APK target picker, kmod WebUI, zygisk WebUI.
Unified repository for the complete Android VPN-hiding stack:
- zygisk/ — Rust Zygisk module (inline libc hooks via shadowhook)
- lsposed/ — Kotlin LSPosed module (Java API + system_server hooks)
- kmod/ — C kernel module (kretprobe hooks, invisible to anti-tamper)
CI workflows use path filters to build only the changed component.