diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9847207..529e4ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,8 @@
 - Require a fresh Android process and actual rendered text in the community
   first-run gate. Detect Native template and runtime exceptions before accepting
   screenshot evidence. Keep gate logs outside generated apps so a development
-  watcher cannot reload itself from its own log writes.
+  watcher cannot reload itself from its own log writes, and stop the complete
+  development process group between Core and UI starters.
 - Refresh the Laravel compatibility lock to patched Laravel, CommonMark, and
   Flysystem releases after new security advisories.
 
diff --git a/scripts/community-experience-gate.sh b/scripts/community-experience-gate.sh
index b4622ca..243b10f 100755
--- a/scripts/community-experience-gate.sh
+++ b/scripts/community-experience-gate.sh
@@ -42,7 +42,7 @@ pam_bin=$(realpath "${pam_bin}")
 
 stop_dev() {
   if [[ -n "${dev_pid}" ]]; then
-    kill "${dev_pid}" 2>/dev/null || true
+    kill -- "-${dev_pid}" 2>/dev/null || true
     wait "${dev_pid}" 2>/dev/null || true
     dev_pid=
   fi
@@ -77,7 +77,7 @@ run_bounded_server_dev() {
   active_log=${log}
   (
     cd "${directory}"
-    exec env PAM_PORT="${port}" "${pam_bin}" dev
+    exec setsid env PAM_PORT="${port}" "${pam_bin}" dev
   ) >"${log}" 2>&1 &
   dev_pid=$!
 
@@ -160,7 +160,7 @@ init_mobile() {
   active_log=${log}
   (
     cd "${directory}"
-    exec "${pam_bin}" dev .
+    exec setsid "${pam_bin}" dev .
   ) >"${log}" 2>&1 &
   dev_pid=$!
   local expected_content