diff --git a/scripts/docker_ci.sh b/scripts/docker_ci.sh
index cd0a629..5feeea8 100755
--- a/scripts/docker_ci.sh
+++ b/scripts/docker_ci.sh
@@ -12,10 +12,14 @@ SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
 NODE_VERSIONS=("20" "22" "24")
 # Use explicit npm patch versions so resolver regressions are caught.
 NPM_VERSIONS=("9.1.1" "9.9.4" "10.9.5" "11.6.2")
-
-echo -e "${YELLOW}=== Frontend Docker CI Matrix ===${NC}"
-echo -e "${BLUE}Repo:${NC} $SCRIPT_DIR"
-echo
+EXTRA_CASES=(
+    "18|9.1.1"
+    "20|8.19.4"
+    "18|8.19.4"
+    "24|11.12.0"
+    "25|11.6.2"
+    "25|11.12.0"
+)
 
 run_combo() {
     local node_version="$1"
@@ -36,9 +40,33 @@ run_combo() {
             npm ci
             npm run build
         "
-
 }
 
+declare -a TEST_CASES=()
+declare -A SEEN_CASES=()
+
+add_case() {
+    local node_version="$1"
+    local npm_version="$2"
+    local key="${node_version}|${npm_version}"
+    if [[ -n "${SEEN_CASES[$key]:-}" ]]; then
+        return
+    fi
+    SEEN_CASES["$key"]=1
+    TEST_CASES+=("$key")
+}
+
+for node_version in "${NODE_VERSIONS[@]}"; do
+    for npm_version in "${NPM_VERSIONS[@]}"; do
+        add_case "$node_version" "$npm_version"
+    done
+done
+
+for case_spec in "${EXTRA_CASES[@]}"; do
+    IFS='|' read -r node_version npm_version <<<"$case_spec"
+    add_case "$node_version" "$npm_version"
+done
+
 TMP_DIR="$(mktemp -d)"
 declare -a JOB_PIDS=()
 declare -a JOB_LABELS=()
@@ -50,21 +78,25 @@ cleanup() {
 
 trap cleanup EXIT
 
-for node_version in "${NODE_VERSIONS[@]}"; do
-    for npm_version in "${NPM_VERSIONS[@]}"; do
-        label="Node ${node_version} / npm ${npm_version}"
-        log_file="$TMP_DIR/node-${node_version}-npm-${npm_version}.log"
+echo -e "${YELLOW}=== Frontend Docker CI Matrix ===${NC}"
+echo -e "${BLUE}Repo:${NC} $SCRIPT_DIR"
+echo
 
-        echo -e "${BLUE}Starting:${NC} ${label}"
-        (
-            echo -e "${YELLOW}=== ${label} ===${NC}"
-            run_combo "$node_version" "$npm_version"
-        ) >"$log_file" 2>&1 &
+for case_spec in "${TEST_CASES[@]}"; do
+    IFS='|' read -r node_version npm_version <<<"$case_spec"
+    label="Node ${node_version} / npm ${npm_version}"
+    safe_npm="${npm_version//./-}"
+    log_file="$TMP_DIR/node-${node_version}-npm-${safe_npm}.log"
 
-        JOB_PIDS+=("$!")
-        JOB_LABELS+=("$label")
-        JOB_LOGS+=("$log_file")
-    done
+    echo -e "${BLUE}Starting:${NC} ${label}"
+    (
+        echo -e "${YELLOW}=== ${label} ===${NC}"
+        run_combo "$node_version" "$npm_version"
+    ) >"$log_file" 2>&1 &
+
+    JOB_PIDS+=("$!")
+    JOB_LABELS+=("$label")
+    JOB_LOGS+=("$log_file")
 done
 
 echo