diff --git a/README.md b/README.md
index 7703b24..d3fdbb8 100644
--- a/README.md
+++ b/README.md
@@ -20,23 +20,27 @@ Plugs into your dock — external monitors turn on, built-in turns off. Unplug 
 
 ## How it works
 
-```
-                  ┌─ Hyprland: socket2 .socket2.sock ──────┐
-    compositor ───┤                                         ├──▶ monitor-lets-go daemon
-                  └─ Sway:     i3 IPC $SWAYSOCK ────────────┘       │
-                                                  hotplug events    │
-                                       ┌───────────────────────────────
-                                       │  debounce 1200ms
-                                       │  determine state (portable/docked)
-                                       │  apply layout
-                                       │  run hooks
-                                       └──────────────┬───────────────
-                                                       │
-                                              ┌────────▼────────┐
-                                              │   systemd         │
-                                              │   watchdog 30s    │
-                                              │   restart 1s      │
-                                              └──────────────────┘
+```mermaid
+flowchart LR
+    subgraph WM["Compositor"]
+        HYPR["Hyprland<br/>socket2 .socket2.sock"]
+        SWAY["Sway<br/>i3 IPC $SWAYSOCK"]
+    end
+
+    HYPR -->|hotplug events| DAEMON["monitor-lets-go daemon"]
+    SWAY -->|hotplug events| DAEMON
+
+    subgraph LOOP["Event loop"]
+        DAEMON --> DEBOUNCE["debounce 1200ms"]
+        DEBOUNCE --> STATE["determine state<br/>(portable / docked)"]
+        STATE --> APPLY["apply layout"]
+        APPLY --> HOOKS["run hooks"]
+    end
+
+    APPLY -->|Hyprland: monitors.lua + hyprctl reload<br/>Sway: swaymsg batch| WM
+
+    SYSTEMD["systemd<br/>watchdog 30s / restart 1s"] --> DAEMON
+    POLL["fallback polling 5s"] --> STATE
 ```
 
 1. **Startup** — daemon queries connected monitors, determines portable/docked, applies layout