diff --git a/egg/install.sh b/egg/install.sh
index 036ba9f..aaa25dd 100755
--- a/egg/install.sh
+++ b/egg/install.sh
@@ -88,6 +88,69 @@ if [ $WORLD_SEED == "0" ]; then
 fi
 
 ## ── The Runic Gateway bridge ─────────────────────────────────────────────────
+# PopupNotifications' recommended look (docs/runicnpc/PLAN.md D327): a banner
+# across the top of the screen. PopupNotifications is optional and the operator
+# installs it (D141), so its config is theirs: the banner goes in only where the
+# file is missing or is still exactly the plugin's own defaults, every setting
+# equal and the Version aside (D328). Anything else is kept whole. The Version
+# is written too: PopupNotifications resets a config without one to defaults.
+rg_popup() { # <the framework's config directory>
+    local file="$1/PopupNotifications.json"
+    local banner='{
+      "Notification duration (in seconds)": 8,
+      "Maximum notifications shown at any time": 6,
+      "UI Positioning": {
+        "Position of the left side of notification (0.0 - 1.0)": 0.15,
+        "Position of the bottom of noticiation (0.0 - 1.0)": 0.87,
+        "Width (0.0 - 1.0)": 0.7,
+        "Height (0.0 - 1.0)": 0.07,
+        "Space between notification (0.0 - 1.0)": 0.005
+      },
+      "UI Options": {
+        "Show close button": false,
+        "Panel color (hex)": "#2b2b2b",
+        "Panel transparency (0.0 - 1.0)": 0.8,
+        "Close button color (hex)": "#d85540",
+        "Close button transparency (0.0 - 1.0)": 0.5,
+        "Font": "robotocondensed-bold.ttf",
+        "Font size": 18
+      },
+      "Version": { "Major": 0, "Minor": 2, "Patch": 1 }
+    }'
+    # PopupNotifications 0.2.1's GetBaseConfig(): a small grey box at the right.
+    local defaults='{
+      "Notification duration (in seconds)": 8,
+      "Maximum notifications shown at any time": 6,
+      "UI Positioning": {
+        "Position of the left side of notification (0.0 - 1.0)": 0.8,
+        "Position of the bottom of noticiation (0.0 - 1.0)": 0.78,
+        "Width (0.0 - 1.0)": 0.19,
+        "Height (0.0 - 1.0)": 0.1,
+        "Space between notification (0.0 - 1.0)": 0.01
+      },
+      "UI Options": {
+        "Show close button": true,
+        "Panel color (hex)": "#2b2b2b",
+        "Panel transparency (0.0 - 1.0)": 0.5,
+        "Close button color (hex)": "#d85540",
+        "Close button transparency (0.0 - 1.0)": 0.5,
+        "Font": "droidsansmono.ttf",
+        "Font size": 12
+      }
+    }'
+    if [ ! -e "${file}" ]; then
+        mkdir -p "$1" || return 1
+        jq -n "${banner}" > "${file}" || return 1
+        echo "Runic Gateway: wrote the recommended PopupNotifications banner to ${file}"
+    elif jq -e --argjson d "${defaults}" 'type == "object" and del(.Version) == $d' "${file}" >/dev/null 2>&1; then
+        jq --argjson b "${banner}" '$b + { Version: (.Version // $b.Version) }' "${file}" > "${file}.rg" \
+            && mv "${file}.rg" "${file}" || { rm -f "${file}.rg"; return 1; }
+        echo "Runic Gateway: ${file} was PopupNotifications' defaults; wrote the recommended banner"
+    else
+        echo "Runic Gateway: kept ${file} (not PopupNotifications' defaults)"
+    fi
+}
+
 # After the wipe, so REMOVE_FILES can never delete the plugin this just placed.
 rg_install() {
     set -euo pipefail
@@ -95,10 +158,10 @@ rg_install() {
     # just the variables an egg declares, and this one is not declared.
     local api="${RUNICGATEWAY_BUNDLE_API:-https://gitea.whitlocktech.com/api/v1/repos/RunicGateway/installer/contents/v2/rust}"
     local work=/tmp/runicgateway
-    local plugins
+    local plugins config
     case "${FRAMEWORK:-vanilla}" in
-        oxide)  plugins=/mnt/server/oxide/plugins ;;
-        carbon) plugins=/mnt/server/carbon/plugins ;;
+        oxide)  plugins=/mnt/server/oxide/plugins;  config=/mnt/server/oxide/config ;;
+        carbon) plugins=/mnt/server/carbon/plugins; config=/mnt/server/carbon/configs ;;
         *)
             # Not a failure (§34.4): failing would leave the operator without a game
             # server over a bridge they may not want yet. The startup skips the
@@ -188,6 +251,10 @@ rg_install() {
     for file in $(jq -r '.files | keys[]' "${manifest}"); do
         install -m 644 "${work}/runicgateway-rust-plugin/${file}" "${plugins}/${file}"
     done
+    # A look, not the bridge: if it cannot be written, say so and finish the install.
+    if ! rg_popup "${config}"; then
+        echo "Runic Gateway: could not write the PopupNotifications banner to ${config}; the bridge is installed regardless"
+    fi
     # What is installed, readable from the panel's file manager.
     jq --arg framework "${FRAMEWORK}" --arg installed "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
        '{ bundle, protocol, framework: $framework, installed: $installed,