diff --git a/README.md b/README.md
index d1b7a4b..1431bc0 100644
--- a/README.md
+++ b/README.md
@@ -46,8 +46,8 @@ PORT=8080 yarn run examples:01_counter
 and open <http://localhost:8080> in your web browser.
 
 You can also try them in codesandbox.io:
-[01](https://codesandbox.io/s/github/dai-shi/use-signals/tree/main/examples/01_counter)
-[02](https://codesandbox.io/s/github/dai-shi/use-signals/tree/main/examples/02_jsx)
+[01](https://stackblitz.com/github/dai-shi/use-signals/tree/main/examples/01_counter)
+[02](https://stackblitz.com/github/dai-shi/use-signals/tree/main/examples/02_jsx)
 
 ## Tweets
 
diff --git a/examples/01_counter/tsconfig.json b/examples/01_counter/tsconfig.json
new file mode 100644
index 0000000..d387817
--- /dev/null
+++ b/examples/01_counter/tsconfig.json
@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "strict": true,
+    "target": "es2018",
+    "downlevelIteration": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "skipLibCheck": true,
+    "allowJs": true,
+    "noUncheckedIndexedAccess": true,
+    "exactOptionalPropertyTypes": true,
+    "jsx": "react-jsx"
+  }
+}
diff --git a/examples/02_jsx/tsconfig.json b/examples/02_jsx/tsconfig.json
new file mode 100644
index 0000000..d387817
--- /dev/null
+++ b/examples/02_jsx/tsconfig.json
@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "strict": true,
+    "target": "es2018",
+    "downlevelIteration": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "skipLibCheck": true,
+    "allowJs": true,
+    "noUncheckedIndexedAccess": true,
+    "exactOptionalPropertyTypes": true,
+    "jsx": "react-jsx"
+  }
+}