diff --git a/frontend/src/lib/stores/surfers.js b/frontend/src/lib/stores/surfers.js
index 51da363..cc9908b 100644
--- a/frontend/src/lib/stores/surfers.js
+++ b/frontend/src/lib/stores/surfers.js
@@ -26,4 +26,4 @@ function createSurfers() {
 
 export const surfers = createSurfers()
 
-export const surfersCount = writable(6)
\ No newline at end of file
+export const surfersCount = writable(4)
\ No newline at end of file
diff --git a/frontend/src/routes/light/h/+page.svelte b/frontend/src/routes/light/h/+page.svelte
index f714b6d..5aac7b0 100644
--- a/frontend/src/routes/light/h/+page.svelte
+++ b/frontend/src/routes/light/h/+page.svelte
@@ -1,3 +1,7 @@
+<script>
+	
+</script>
+
 <ul>
 	<li>
 		<div class="priority" id="n">2</div>
diff --git a/frontend/src/routes/light/setup/+page.svelte b/frontend/src/routes/light/setup/+page.svelte
index 134a283..10f7bd3 100644
--- a/frontend/src/routes/light/setup/+page.svelte
+++ b/frontend/src/routes/light/setup/+page.svelte
@@ -2,7 +2,15 @@
     import { onMount } from 'svelte';
     import { surfers, surfersCount } from '$lib/stores/surfers.js';
     import { colors } from '$lib/stores/colors.js';
-    import Button from '$lib/button.svelte';
+    import { dev } from '$app/environment';
+
+    if (dev) {
+		console.log('Dev mode');
+	} else {
+		console.log('Not dev mode');
+	}
+
+    const events = ['priority'];
 
     $: start = false;
     // $: surfers_tot = 6;
@@ -25,6 +33,11 @@
             start = JSON.parse(window.sessionStorage.getItem('status'));
 			console.log(`loaded: ${JSON.stringify($surfers)}`);
 		}
+
+        if (!dev) {
+            const sse = StartSSE();
+    		return sse;
+        }
 	});
 
     function hasDuplicateColors() {
@@ -84,7 +97,6 @@
     }
 
 	 async function ChangePriority(id) {
-	// 	let max = $priority.surfers.length;
 	 	console.log($surfers[id]);
 		if ($surfers[id].priority === 'P') {
 			for (let i=0; i<$surfersCount; i++) {
@@ -138,25 +150,46 @@
             }
         }
 
-	// 	const res = await fetch(`/api/priority`, {
-	// 		method: 'POST',
-	// 		body: JSON.stringify({
-	// 			priority: $priority.surfers.map((obj) => obj.priority),
-	// 			mode: 'priority'
-	// 		}),
-	// 		headers: {
-	// 			'Content-Type': 'application/json'
-	// 		}
-	// 	});
-	// 	console.log(
-	// 		JSON.stringify({
-	// 			priority: $priority.surfers.map((obj) => obj.priority),
-	// 			mode: 'priority'
-	// 		})
-	// 	);
-	// 	console.log(`retval: ${JSON.stringify(res)}`);
+        if (!dev) {
+            const res = await fetch(`/api/priority`, {
+                method: 'POST',
+                body: JSON.stringify({
+                    priority: $surfers.map((obj) => obj.priority)
+                }),
+                headers: {
+                    'Content-Type': 'application/json'
+                }
+            });
+            console.log(`retval: ${JSON.stringify(res)}`);
+        }	 	
 	}
 
+	function StartSSE() {
+		let url = '/api/sse?';
+		for (let e in events) {
+			url += `event=${events[e]}&`;
+		}
+		console.log(`sse url: ${url}`);
+		const sse = new EventSource(url);
+		console.log(`subscribe: ${sse}`);
+
+		sse.onopen = () => {
+			console.log(`sse open ${now()}`);
+		};
+
+		sse.addEventListener('priority', (e) => {
+			let Msg = JSON.parse(e.data);
+			console.log(JSON.stringify(Msg));
+		});
+
+
+        return () => {
+			sse.close();
+			console.log(`sse closing ${Date.now()}`);
+		};
+	}
+
+
 </script>
 
 {#if start}
diff --git a/frontend/src/routes/light/v/+page.svelte b/frontend/src/routes/light/v/+page.svelte
index 89a52a2..300583d 100644
--- a/frontend/src/routes/light/v/+page.svelte
+++ b/frontend/src/routes/light/v/+page.svelte
@@ -1,3 +1,7 @@
+<script>
+
+</script>
+
 <div class="wall">
 	<div class="column">
 		<div class="priority" id="n">2</div>