diff --git a/examples/api-basic-auth-middleware/basic-auth.w b/examples/api-basic-auth-middleware/basic-auth.w
index ad65fa7..eecd808 100644
--- a/examples/api-basic-auth-middleware/basic-auth.w
+++ b/examples/api-basic-auth-middleware/basic-auth.w
@@ -50,7 +50,7 @@ pub class BasicAuth {
       }
 
       // force cast to str from str?
-      return "{authHeader}";
+      return "{authHeader!}";
     } else {
       log("headers: {Json.stringify(headers)}");
       log("no auth header");
diff --git a/examples/api-basic-auth/main.w b/examples/api-basic-auth/main.w
index 888b20c..38de0cf 100644
--- a/examples/api-basic-auth/main.w
+++ b/examples/api-basic-auth/main.w
@@ -52,7 +52,7 @@ class BasicAuth {
       }
 
       // force cast to str from str?
-      return "{authHeader}";
+      return "{authHeader!}";
     } else {
       log("headers: {Json.stringify(headers)}");
       log("no auth header");
diff --git a/examples/multiplayer-videogame/main.w b/examples/multiplayer-videogame/main.w
index eeade5f..286e4e8 100644
--- a/examples/multiplayer-videogame/main.w
+++ b/examples/multiplayer-videogame/main.w
@@ -1,6 +1,5 @@
 bring cloud;
 bring util;
-bring ex;
 bring expect;
 
 let website = new cloud.Website(path: "./front-end");
diff --git a/examples/react-website/main.w b/examples/react-website/main.w
index f20a77f..4e7e887 100644
--- a/examples/react-website/main.w
+++ b/examples/react-website/main.w
@@ -1,7 +1,7 @@
 bring cloud;
 bring util;
 bring http;
-bring ex;
+bring react;
 
 let api = new cloud.Api();
 
@@ -12,7 +12,7 @@ api.get("/test", inflight (req) => {
   };
 });
 
-let website = new ex.ReactApp(
+let website = new react.App(
   projectPath: "./website",
   useBuildCommand: true,
   localPort: 3002,
diff --git a/examples/react-website/package.json b/examples/react-website/package.json
new file mode 100644
index 0000000..db6b562
--- /dev/null
+++ b/examples/react-website/package.json
@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "@winglibs/react": "^0.1.4"
+  }
+}
diff --git a/examples/redis/main.w b/examples/redis/main.w
index 6907369..23ea9d2 100644
--- a/examples/redis/main.w
+++ b/examples/redis/main.w
@@ -1,20 +1,20 @@
 bring cloud;
-bring ex;
+bring redis;
 bring util;
 bring expect;
 
 let queue = new cloud.Queue();
-let redis = new ex.Redis();
+let cache = new redis.Redis();
 
 queue.setConsumer(inflight (message) => {
-  redis.set("hello", message);
+  cache.set("hello", message);
 }, timeout: 3s);
 
 test "Hello, world!" {
   queue.push("world!");
   util.waitUntil(() => {
-    return redis.get("hello") != nil;
+    return cache.get("hello") != nil;
   });
 
-  expect.equal(redis.get("hello"), "world!");
+  expect.equal(cache.get("hello"), "world!");
 }
\ No newline at end of file
diff --git a/examples/redis/package.json b/examples/redis/package.json
new file mode 100644
index 0000000..7a613ab
--- /dev/null
+++ b/examples/redis/package.json
@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "@winglibs/redis": "^0.0.11"
+  }
+}
diff --git a/examples/todo-app/main.w b/examples/todo-app/main.w
index 2d13ea5..f5f0c11 100644
--- a/examples/todo-app/main.w
+++ b/examples/todo-app/main.w
@@ -1,8 +1,8 @@
 bring cloud;
-bring ex;
 bring util;
 bring http;
 bring expect;
+bring redis;
 
 enum Status {
   PENDING, COMPLETED
@@ -73,17 +73,17 @@ let convertTaskArrayToJson = inflight (taskArray: Array<Task>): Json => {
  ********************************************************************/
 
 class TaskStorage impl ITaskStorage {
-  db: ex.Redis;
+  db: redis.Redis;
   counter: cloud.Counter;
 
   new() {
-    this.db = new ex.Redis();
+    this.db = new redis.Redis();
     this.counter = new cloud.Counter();
   }
 
   inflight _add(id: str, j: Json) {
     this.db.set(id , Json.stringify(j));
-    this.db.sadd("tasks", id);
+    this.db.sAdd("tasks", id);
   }
 
   pub inflight add(description: str): str {
@@ -120,8 +120,8 @@ class TaskStorage impl ITaskStorage {
 
   pub inflight find(r: IRegExp): Array<Task> {
     let result = MutArray<Task>[];
-    let ids = this.db.smembers("tasks");
-    for id in ids {
+    let ids = this.db.sMembers("tasks");
+    for id in ids ?? [] {
       if let taskJsonStr = this.db.get(id) {
         let taskJson = Json.parse(taskJsonStr);
         if r.test(taskJson.get("description").asStr()) {
diff --git a/examples/todo-app/package.json b/examples/todo-app/package.json
new file mode 100644
index 0000000..7a613ab
--- /dev/null
+++ b/examples/todo-app/package.json
@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "@winglibs/redis": "^0.0.11"
+  }
+}