Minor adjustments

pico.js

     get isConnected() {
         return State.websocket && State.websocket.readyState === 1
     },
+    get others() {
+        return State.online.filter(username => username != State.username)
+    }
 })
+const rpcConfig = {iceServers: [{
+    urls: ['stun:stun.pico.chat:5349', 'turn:turn.pico.chat:5349'],
+    username: 'roderic',
+    credential: 'tomodachi',
+}]}
 const params = (new URL(document.location)).searchParams
 /*
 *
             difference(message.online, State.online).forEach(username => {
                 if(username === State.username) return
                 signal({kind: 'post', ts: message.ts, value: `${username} joined`})
+                signal({kind: 'join', value: username})
             })
             difference(State.online, message.online).forEach(username => {
                 if(username === State.username) return
                 signal({kind: 'post', ts: message.ts, value: `${username} left`})
+                signal({kind: 'leave', value: username})
             })
         }