Add kumos.

static/kumos/guestbook.mjs

@@ -0,0 +1,38 @@
+import { Application, Window, promoteWindow, registerApplication, getScreenRoot, getProcList } from "./kernel.mjs";
+import { notify } from "./shell.mjs";
+
+function draw(p) {
+    const w = new Window();
+    w.setTitle("Guestbook");
+    w.content.innerHTML = `
+    <script src="https://iframe.chat/scripts/main.min.js"></script>
+    <iframe class="windowContent" src="https://iframe.chat/embed?chat=17048300" id="chattable"></iframe>
+    <script>chattable.initialize({ theme: "moderno" });</script>
+    `
+    
+    getScreenRoot().appendChild(w.window);
+    promoteWindow(w);
+
+    w.close.addEventListener('click', () => {
+        p.detach();
+        w.destroy();
+    })
+}
+
+function main(p) {
+    let running = false;
+    getProcList().forEach(proc => {
+        if (proc.name == 'guestbook' && proc != p) {
+            notify("Guestbook", "Guestbook is already running!")
+            p.detach();
+            running = true;
+        }
+    })
+
+    if (!running) {
+        draw(p);
+    }
+}
+
+const app = new Application('guestbook', main);
+registerApplication(app);