diff --git a/assets/css/room.css b/assets/css/room.css
new file mode 100644
index 00000000..b146ecc2
--- /dev/null
+++ b/assets/css/room.css
@@ -0,0 +1,8 @@
+body, html {
+    margin: 0;
+    padding: 0;
+    height: 100%;
+}
+#meet {
+    height: 100%;
+}
diff --git a/assets/js/main.js b/assets/js/main.js
index 8051c851..2f5dfd8e 100644
--- a/assets/js/main.js
+++ b/assets/js/main.js
@@ -182,7 +182,7 @@ function getNodeType(jQuery, md5, url) {
  * @param {object} md5 md5 library object
  * @return {object} returns the rendered DataTable object
  */
-function directory(jQuery) {
+async function directory(jQuery) {
 
     // Embed the table placeholder
     jQuery('#content').prepend('<table id="directory" class="display"></table>');
@@ -217,18 +217,22 @@ function directory(jQuery) {
             {
                 targets: 4,//video
                 render(data, type, row) {
-                    /*
-                    return `
-                        <button type="button" onclick="openJit('https://meet.jit.si/ohbm2020-${row.number}', ${row.number})">
-                            Open
-                            <small>(<span id="jit_users_${row.number}">0</span> people)</small>
-                        </button>
-                    `
-                    */
-                    return `
-                        <a href="#" onclick="openJit('https://meet.jit.si/ohbm2020-${row.number}', ${row.number})">jitsi:ohbm2020-${row.number}</a>
-                        <!--<small>(<span id="jit_users_${row.number}">0</span> people)</small>-->
-                    `
+                    let name = "ohbm2020-"+row.number; //default
+                    if(row.videochat) name = row.videochat; //user can override it to another jitsi name
+                    if(row.videochat && row.videochat.startsWith("http")) {
+                        //or use custom url
+                        return `
+                            <a href="${row.videochat}" targer="ohbm2020_${row.number}">
+                                custom url
+                            </a>
+                        `;
+                    } else {
+                        return `
+                            <a href="#" onclick="openJit('${row.number}', '${name}')">
+                                jitsi://${name}
+                            </a>
+                        `;
+                    }
                 },
             },
             {
@@ -244,8 +248,6 @@ function directory(jQuery) {
                         return '<a href="https://github.com/datalad-datasets/ohbm2020-posters/pulls">[ADD]</a>';
                     } else {
                         return '<a href="' + row.pdf + '" target="_ohbm2020_pdf_' + row.number + '">PDF</a>';
-                        //return '<a href="#" onclick="openPdf('"+row.pdf+"', '"+row.number+"')">PDF</a>';
-                        //return '<a href="#" onclick="openPdf("'+row.pdf+'", 1)">PDF</a>';
                     }
                 },
             }
@@ -254,70 +256,52 @@ function directory(jQuery) {
     }); //end of DataTable
 
     //load posters
-    fetch("posters.json").then(res=>res.json()).then(data=>{
-        data.posters.forEach(p=>{
-            p.id = 'p'+p.number; //cannot be number (or string of number)
-            p.people = 0;
-        });
-        table.rows.add(data.posters).draw();
+    let res = await fetch("posters.json");
+    let data = await res.json();
+    data.posters.forEach(p=>{
+        p.id = 'p'+p.number; //cannot be number (or string of number)
+        p.people = 0;
+        p.videochat = null; //let's ignore this now (override only)
+    });
 
-        wss = new ReconnectingWebSocket("wss://dev1.soichi.us/ohbm2020/");
+    //load override and apply
+    res = await fetch("posters-overrides.json");
+    let override = await res.json();
+    override.posters.forEach(o=>{
+        let p = data.posters.find(p=>p.number == o.number);
+        Object.assign(p, o);
+    });
 
-        //connect to backend
-        wss.onopen = () => {
-            wss.send(JSON.stringify({action: "dump"}));
-        }
-        wss.onmessage = e => {
-            let msg = JSON.parse(e.data);
-            if(msg.dump) {
-                for(let key in msg.dump) {
-                    $("#jit_users_"+key).text(msg.dump[key]);
-                    let row = table.row("#p"+key);
-                    if(row.length == 1) {
-                        table.cell(row, 5).data(msg.dump[key]);
-                    }
+    table.rows.add(data.posters).draw();
+
+    wss = new ReconnectingWebSocket("wss://dev1.soichi.us/ohbm2020/");
+
+    //connect to backend
+    wss.onopen = () => {
+        wss.send(JSON.stringify({action: "dump"}));
+    }
+    wss.onmessage = e => {
+        let msg = JSON.parse(e.data);
+        if(msg.dump) {
+            for(let key in msg.dump) {
+                let row = table.row("#p"+key);
+                if(row.length == 1) {
+                    table.cell(row, 5).data(msg.dump[key]);
                 }
-                table.draw();
-            }
-            if(msg.update) {
-                $("#jit_users_"+msg.update.id).text(msg.update.count);
-                let row = table.row("#p"+msg.update.id);
-                table.cell(row, 5).data(msg.update.count).draw();
             }
+            table.draw();
         }
-    });
+        if(msg.update) {
+            let row = table.row("#p"+msg.update.id);
+            table.cell(row, 5).data(msg.update.count).draw();
+        }
+    }
 
     localStorage['ntCache'] = JSON.stringify(ntCache);
     return table;
 }
 
-let openJits = new Set();
-
-window.addEventListener("beforeunload", function(evt) {
-    openJits.forEach(id=>{
-        wss.send(JSON.stringify({action: "jitclose", id}));
-    });
-});
-
-function openJit(url, number) {
-    wss.send(JSON.stringify({action: "jit", id: number}));
-    openJits.add(number);
-    let child = window.open(url, "jit"+number);
-    let timer = setInterval(()=>{
-        console.log(openJits);
-        if(child.closed) {
-            wss.send(JSON.stringify({action: "jitclose", id: number}));
-            openJits.delete(number);
-            clearInterval(timer);
-        } else {
-            //still open.. let's let the server know that we are still here
-            wss.send(JSON.stringify({action: "jit", id: number}));
-        }
-    }, 1000*3);
-}
-
-function openPdf(url, number) {
-    window.open(pdf, "pdf"+number);
+function openJit(id, name) {
+    window.open("room.html#"+id+"."+name);
 }
 
-
diff --git a/backend/server.js b/backend/server.js
index 0746a45b..df27fb6d 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -30,7 +30,7 @@ app.ws('/', function(ws, req) {
         try {
             //console.debug(data);
             let msg = JSON.parse(data);
-            let ip = req.headers["x-real-ip"];
+            let ip = req.headers["x-real-ip"]+"."+msg.cid; 
             let entry;
 
             switch(msg.action) {
diff --git a/posters-overrides.json b/posters-overrides.json
index 3900c130..ece0e29c 100644
--- a/posters-overrides.json
+++ b/posters-overrides.json
@@ -3082,7 +3082,7 @@
   },
   {
    "number": 1098,
-   "videochat": "<a href=\"https://meet.jit.si/cobidas_checklist\" target=\"_cobidas_checklist\">jitsi:cobidas_checklist</a>",
+   "videochat": "cobidas_checklist",
    "pdf": "https://drive.google.com/file/d/1CirkGPplmrbqilPOq7OdKQJYZzwc0AKc/view?usp=sharing"
   },
   {
@@ -3674,7 +3674,7 @@
   },
   {
    "number": 1302,
-   "videochat": "<a href=\"https://meet.jit.si/ohbm2020-412\" target=\"_ohbm2020-412\">jitsi:ohbm2020-412</a>",
+   "videochat": "ohbm2020-412",
    "pdf": "https://cdn-akamai.6connex.com//645/1827//TaskCCA_poster_1__15922324225571065.pdf"
   },
   {
@@ -4583,7 +4583,7 @@
   },
   {
    "number": 1621,
-   "videochat": "<a href=\"https://zoom.us/j/9545579483?pwd=QUM3Um55MWV2RmFuWTJkb3ZKV2xQdz09\" target=\"_ohbm2020-1621\">zoom:9545579483</a> (password: \"visualqc\")",
+   "videochat": "https://zoom.us/j/9545579483?pwd=QUM3Um55MWV2RmFuWTJkb3ZKV2xQdz09",
    "pdf": "https://crossinvalidation.com/2020/06/22/evaluating-visual-qc-protocols-for-freesurfer-parcellations-error-detection-rate-inter-rater-reliability-and-site-differences/"
   },
   {
@@ -5290,7 +5290,7 @@
   },
   {
    "number": 1860,
-   "videochat": "<a href=\"https://meet.jit.si/DeepPrimateBrainShapes\" target=\"_DeepPrimateBrainShapes\">jitsi:DeepPrimateBrainShapes</a>",
+   "videochat": "DeepPrimateBrainShapes",
    "pdf": "https://github.com/katjaq/brainscapes/blob/master/img/Heuer-Toro_BrainScapes_OHBM_2020.pdf"
   },
   {
@@ -5395,7 +5395,7 @@
   },
   {
    "number": 1895,
-   "videochat": "<a href=\"https://meet.jit.si/bids-derivatives\" target=\"_bids-derivatives\">jitsi:bids-derivatives</a>",
+   "videochat": "bids-derivatives",
    "pdf": "https://cdn-akamai.6connex.com/645/1827/poster_15922429379118925.pdf"
   },
   {
@@ -5503,7 +5503,7 @@
   },
   {
    "number": 1929,
-   "videochat": "<a href=\"https://meet.jit.si/rsHRF_toolbox\" target=\"_rsHRF_toolbox\">jitsi:rsHRF_toolbox</a>",
+   "videochat": "rsHRF_toolbox",
    "pdf": "https://github.com/sofievdbos/OHBM2020/blob/master/OHBM20_SVDB_interactive.pdf"
   },
   {
diff --git a/room.html b/room.html
new file mode 100644
index 00000000..7b4c94dc
--- /dev/null
+++ b/room.html
@@ -0,0 +1,33 @@
+<!doctype html>
+<html>
+<head>
+    <script src='https://meet.jit.si/external_api.js'></script>
+	<script type="text/javascript" charset="utf-8" src="assets/js/reconnecting-websocket.min.js"></script>
+    <link rel="stylesheet" type="text/css" href="assets/css/room.css">
+</head>
+<body>
+    <div id="meet"/>
+    <script>
+        let hash = location.hash.substring(1); //jitsi room name
+        let id = hash.split(".")[0];
+        let roomName = hash.split(".")[1];
+        let cid = Math.random().toString(); //client id
+
+        if(!roomName) alert("no room name set in hash");
+
+        console.log(roomName);
+        const api = new JitsiMeetExternalAPI("meet.jit.si", {
+            roomName,
+            parentNode: document.querySelector('#meet')
+        })
+
+        let wss = new ReconnectingWebSocket("wss://dev1.soichi.us/ohbm2020/");
+        wss.onopen = () => {
+            wss.send(JSON.stringify({action: "jit", id, cid}));
+        }
+        window.addEventListener("beforeunload", function(evt) {
+            wss.send(JSON.stringify({action: "jitclose", id, cid}));
+        });
+    </script>
+</body>
+</html>