diff --git a/test_elemes_sh.sh b/test_elemes_sh.sh
new file mode 100755
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--- /dev/null
+++ b/test_elemes_sh.sh
@@ -0,0 +1,185 @@
+#!/usr/bin/env bash
+# Regression test untuk resolusi PROJECT_NAME dinamis di elemes.sh.
+#
+# Memastikan elemes.sh TIDAK pernah menulis nama container hard-coded
+# (mis. lms-dev_* / lms-sinau-c_*): semua operasi di-resolve lewat
+# podman-compose (exec/restart/config) dan label filter project+service,
+# apa pun nama direktori parent / PROJECT_NAME-nya.
+#
+# Berjalan dengan fake `podman`/`podman-compose` di workspace temp sehingga
+# tidak menyentuh container asli sama sekali.
+
+set -euo pipefail
+
+TESTROOT=$(mktemp -d)
+trap 'rm -rf "$TESTROOT"' EXIT
+
+# PARENT_DIR memakai NAMA DINAMIS (bukan "lms-dev") -> PROJECT_NAME ikut dinamis.
+# elemes.sh menghitung PROJECT_NAME dari basename PARENT_DIR, jadi script
+# ditaruh di sub-direktori <PARENT_DIR>/elemes.
+PARENT_DIR=$(mktemp -d "$TESTROOT/my-deploy.XXXX")
+WORKSPACE="$PARENT_DIR/elemes"
+PROJECT_NAME=$(basename "$PARENT_DIR")
+FAKEBIN="$TESTROOT/fakebin"
+mkdir -p "$WORKSPACE" "$FAKEBIN"
+touch "$PARENT_DIR/.env" # PARENT_DIR/.env (dibaca run_compose & db_init)
+
+cp "$(dirname "$0")/elemes.sh" "$WORKSPACE/elemes.sh"
+export FAKE_PROJECT="$PROJECT_NAME"
+
+# --- Fake podman-compose: catat semua panggilan, jawab config/exec/restart ----
+cat > "$FAKEBIN/podman-compose" <<'EOF'
+#!/usr/bin/env bash
+LOG="$(dirname "$0")/calls.log"
+echo "podman-compose $*" >> "$LOG"
+ARGS=" $* "
+if [[ "$ARGS" == *" config --services "* ]]; then
+  printf 'elemes-ts\npostgres\nelemes\ncompiler-worker\nelemes-frontend\nvelxio\nflowchart\n'
+elif [[ "$ARGS" == *" config "* ]]; then
+  cat <<'YAML'
+services:
+  compiler-worker:
+    image: lms-compiler-worker:latest
+  elemes:
+    image: lms-backend:latest
+  elemes-frontend:
+    image: lms-frontend:latest
+  elemes-ts:
+    image: docker.io/tailscale/tailscale:latest
+  flowchart:
+    image: lms-flowchart:latest
+  postgres:
+    image: postgres:18-alpine
+  velxio:
+    image: lms-velxio:latest
+YAML
+elif [[ "$ARGS" == *" exec "* ]]; then
+  # psql -tAc dipakai db_init untuk deteksi schema kosong -> jawab "t"
+  if [[ "$ARGS" == *" -tAc "* ]]; then
+    echo "t"
+  else
+    echo "fake-exec:$*"
+  fi
+elif [[ "$ARGS" == *" restart "* ]]; then
+  echo "fake-restart:$*"
+fi
+exit 0
+EOF
+
+# --- Fake podman: catat panggilan, jawab ps/images/inspect --------------------
+cat > "$FAKEBIN/podman" <<'EOF'
+#!/usr/bin/env bash
+LOG="$(dirname "$0")/calls.log"
+echo "podman $*" >> "$LOG"
+ARGS=" $* "
+if [[ "$ARGS" == *" ps "* ]]; then
+  if [[ "$ARGS" == *"{{.ID}}"* ]]; then
+    echo "cid111"
+  else
+    echo "${FAKE_PROJECT}_elemes-ts_1|docker.io/tailscale/tailscale:latest|abc123|Up|map[com.docker.compose.project:$FAKE_PROJECT com.docker.compose.service:elemes-ts io.podman.compose.project:$FAKE_PROJECT]"
+    echo "${FAKE_PROJECT}_postgres_1|postgres:18-alpine|def456|Up (healthy)|map[com.docker.compose.project:$FAKE_PROJECT com.docker.compose.service:postgres io.podman.compose.project:$FAKE_PROJECT]"
+    echo "${FAKE_PROJECT}_elemes_1|localhost/lms-backend:latest|old123|Up|map[com.docker.compose.project:$FAKE_PROJECT com.docker.compose.service:elemes io.podman.compose.project:$FAKE_PROJECT]"
+    echo "${FAKE_PROJECT}_compiler-worker_1|localhost/lms-compiler-worker:latest|jkl012|Up|map[com.docker.compose.project:$FAKE_PROJECT com.docker.compose.service:compiler-worker io.podman.compose.project:$FAKE_PROJECT]"
+    echo "${FAKE_PROJECT}_elemes-frontend_1|localhost/lms-frontend:latest|mno345|Up|map[com.docker.compose.project:$FAKE_PROJECT com.docker.compose.service:elemes-frontend io.podman.compose.project:$FAKE_PROJECT]"
+    echo "${FAKE_PROJECT}_velxio_1|localhost/lms-velxio:latest|pqr678|Up|map[com.docker.compose.project:$FAKE_PROJECT com.docker.compose.service:velxio io.podman.compose.project:$FAKE_PROJECT]"
+    echo "${FAKE_PROJECT}_flowchart_1|localhost/lms-flowchart:latest|stu901|Up|map[com.docker.compose.project:$FAKE_PROJECT com.docker.compose.service:flowchart io.podman.compose.project:$FAKE_PROJECT]"
+  fi
+elif [[ "$ARGS" == *" images "* ]]; then
+  case "$ARGS" in
+    *"lms-backend:latest"*) echo "new456" ;; # != old123 (ImageID container) -> STALE
+    *"lms-frontend:latest"*) echo "mno345" ;;
+    *"lms-velxio:latest"*) echo "pqr678" ;;
+    *"lms-compiler-worker:latest"*) echo "jkl012" ;;
+    *"lms-flowchart:latest"*) echo "stu901" ;;
+    *"postgres:18-alpine"*) echo "def456" ;;
+    *"tailscale/tailscale:latest"*) echo "abc123" ;;
+    *) echo "deadbeef" ;;
+  esac
+elif [[ "$ARGS" == *" inspect "* ]]; then
+  echo '["/bin/sh","-c","gunicorn --config gunicorn.conf.py app:create_app()"]'
+  echo '["gunicorn"]'
+  echo "localhost/lms-backend:latest"
+fi
+exit 0
+EOF
+
+chmod +x "$FAKEBIN/podman" "$FAKEBIN/podman-compose"
+export PATH="$FAKEBIN:$PATH"
+
+FAILED=0
+fail() { echo "❌ $1"; FAILED=1; }
+ok() { echo "✅ $1"; }
+
+# ===== 1) verify: resolusi via label + service, tanpa nama container hard-coded
+if ! OUT=$(cd "$WORKSPACE" && bash elemes.sh verify 2>&1); then
+  fail "verify tidak berjalan"
+  echo "$OUT"
+else
+  echo "$OUT" | grep -q "${PROJECT_NAME}_elemes_1" \
+    && ok "verify menampilkan container ${PROJECT_NAME}_elemes_1" \
+    || fail "verify tidak menampilkan container ${PROJECT_NAME}_elemes_1"
+  echo "$OUT" | grep -q "flowchart" \
+    && ok "verify menampilkan service flowchart" \
+    || fail "verify tidak menampilkan service flowchart"
+  echo "$OUT" | grep -q "STALE" \
+    && ok "verify mendeteksi image STALE (elemes)" \
+    || fail "verify tidak mendeteksi image STALE"
+  echo "$OUT" | grep -q "lms-dev" \
+    && fail "verify masih menyebut 'lms-dev'" || true
+fi
+
+# ===== 2) run: down/up + db_init memakai compose_exec / compose_restart ======
+if ! OUT=$(cd "$WORKSPACE" && bash elemes.sh run 2>&1); then
+  fail "run tidak berjalan"
+  echo "$OUT"
+else
+  grep -q "exec -T postgres pg_isready" "$FAKEBIN/calls.log" \
+    && ok "db_init memakai compose_exec postgres (pg_isready)" \
+    || fail "db_init tidak memakai compose_exec postgres (pg_isready)"
+  grep -q "exec -T postgres psql" "$FAKEBIN/calls.log" \
+    && ok "db_init memakai compose_exec postgres (psql -tAc)" \
+    || fail "db_init tidak memakai compose_exec postgres (psql -tAc)"
+  grep -q "exec -T -w /app -e PYTHONPATH=services elemes python -m alembic upgrade head" "$FAKEBIN/calls.log" \
+    && ok "db_init memakai compose_exec elemes (alembic)" \
+    || fail "db_init tidak memakai compose_exec elemes (alembic)"
+  grep -q "restart elemes" "$FAKEBIN/calls.log" \
+    && ok "first-run memakai compose_restart elemes" \
+    || fail "first-run tidak memakai compose_restart elemes"
+fi
+
+# ===== 3) dbbackup: dump lewat compose_exec postgres (bukan lms-dev_postgres_1)
+if ! OUT=$(cd "$WORKSPACE" && bash elemes.sh dbbackup 2>&1); then
+  fail "dbbackup tidak berjalan"
+  echo "$OUT"
+else
+  DUMP=$(ls "$PARENT_DIR"/backups/elemes_*.sql 2>/dev/null | head -1 || true)
+  if [ -n "$DUMP" ] && [ -s "$DUMP" ]; then
+    ok "dbbackup menghasilkan file dump"
+  else
+    fail "dbbackup tidak menghasilkan file dump"
+  fi
+  grep -q "exec -T postgres pg_dump" "$FAKEBIN/calls.log" \
+    && ok "dbbackup memakai compose_exec postgres (pg_dump)" \
+    || fail "dbbackup tidak memakai compose_exec postgres (pg_dump)"
+fi
+
+# ===== 4) Tidak boleh ada container name hard-coded / `podman exec` langsung
+if grep -qE "lms-dev_|lms-sinau-c_|podman exec " "$FAKEBIN/calls.log"; then
+  fail "masih ada panggilan container name hard-coded:"
+  grep -E "lms-dev_|lms-sinau-c_|podman exec " "$FAKEBIN/calls.log" || true
+else
+  ok "tidak ada nama container hard-coded di semua panggilan"
+fi
+
+# ===== 5) Label filter memakai PROJECT_NAME dinamis
+grep -q "label=io.podman.compose.project=$PROJECT_NAME" "$FAKEBIN/calls.log" \
+  && ok "label filter memakai PROJECT_NAME dinamis ($PROJECT_NAME)" \
+  || fail "label filter tidak memakai PROJECT_NAME dinamis"
+
+echo ""
+if [ "$FAILED" -eq 0 ]; then
+  echo "🎉 Semua regression test lulus (PROJECT_NAME=$PROJECT_NAME)"
+else
+  echo "💥 Ada test yang gagal"
+  exit 1
+fi