Announcing Firepad — Our Open Source Collaborative Text Editor(firebase.com)

    #!/usr/bin/nodejs
    var Firebase = require('firebase');

    // parseInt(window.location.hash.substring(1))
    var room = 44;

    var shard = room % 15;
    var db = new Firebase('https://firebase-firepad' +
        shard + '.firebaseio.com/' + room);

    var check = db.child('checkpoint');
    check.once('value', function (value) {
        value = value.val();
        check.set({
            a: value.a,
            id: value.id,
            o: [''], // random data would be better
            // but I'm both lazy and busy today ;P
        });
    });

    Firepad: Invalid operation. https://firebase-firepad14.firebaseio.com/44 C2GK