diff --git a/.github/workflows/notify-docs.yml b/.github/workflows/notify-docs.yml
new file mode 100644
index 0000000..24376ff
--- /dev/null
+++ b/.github/workflows/notify-docs.yml
@@ -0,0 +1,34 @@
+name: Notify thast-docs
+
+# Trigger a rebuild of the documentation hub whenever any file that
+# feeds the sptime sync manifest changes on main. Keep this filter
+# in sync with the manifest in FiLORUX/thast-docs scripts/sync-docs.mjs.
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'README.md'
+      - 'LICENSE'
+
+jobs:
+  notify:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Dispatch docs-update event
+        env:
+          GH_TOKEN: ${{ secrets.DOCS_DISPATCH_TOKEN }}
+        run: |
+          curl -fsSL -X POST \
+            -H "Authorization: Bearer $GH_TOKEN" \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            "https://api.github.com/repos/FiLORUX/thast-docs/dispatches" \
+            -d '{
+              "event_type": "docs-update",
+              "client_payload": {
+                "source_repo": "${{ github.repository }}",
+                "source_sha": "${{ github.sha }}",
+                "source_ref": "${{ github.ref }}"
+              }
+            }'
diff --git a/README.md b/README.md
index 0703c6c..0e7a8b6 100644
--- a/README.md
+++ b/README.md
@@ -39,29 +39,29 @@ SPTime is a modern, enterprise-grade time synchronisation platform that provides
 
 ## Architecture
 
-```
-┌─────────────────────────────────────────────────────────────────┐
-│                         SPTime Server                            │
-├─────────────────────────────────────────────────────────────────┤
-│  ┌──────────┐  ┌──────────┐  ┌──────────┐  ┌──────────────────┐ │
-│  │   NTP    │  │   NTS    │  │   PTP    │  │     GPSDO        │ │
-│  │  Server  │  │  Server  │  │   GM     │  │  (SerialPPS/     │ │
-│  │  :123    │  │  :4460   │  │  :319/320│  │   Network/Dummy) │ │
-│  └────┬─────┘  └────┬─────┘  └────┬─────┘  └────────┬─────────┘ │
-│       │             │             │                  │           │
-│       └─────────────┴──────┬──────┴──────────────────┘           │
-│                            │                                      │
-│                    ┌───────┴───────┐                             │
-│                    │ Clock Manager │                             │
-│                    │ (Discipline)  │                             │
-│                    └───────┬───────┘                             │
-│                            │                                      │
-│  ┌──────────────────┬──────┴──────┬────────────────────────────┐ │
-│  │                  │             │                            │ │
-│  │    Web API       │   Metrics   │        Config              │ │
-│  │    :8080         │  Prometheus │        YAML                │ │
-│  └──────────────────┴─────────────┴────────────────────────────┘ │
-└─────────────────────────────────────────────────────────────────┘
+```mermaid
+flowchart TB
+    subgraph SPTime["SPTime Server"]
+        NTP["NTP Server<br/>:123"]
+        NTS["NTS Server<br/>:4460"]
+        PTP["PTP GM<br/>:319/320"]
+        GPSDO["GPSDO<br/>(SerialPPS / Network / Dummy)"]
+
+        Clock["Clock Manager<br/>(Discipline)"]
+
+        Web["Web API<br/>:8080"]
+        Metrics["Metrics<br/>(Prometheus)"]
+        Config["Config<br/>(YAML)"]
+
+        NTP   --> Clock
+        NTS   --> Clock
+        PTP   --> Clock
+        GPSDO --> Clock
+
+        Clock --> Web
+        Clock --> Metrics
+        Clock --> Config
+    end
 ```
 
 ## Quick Start