diff --git a/porque-rust.html b/porque-rust.html
index aa23575..6d97bc7 100644
--- a/porque-rust.html
+++ b/porque-rust.html
@@ -201,8 +201,8 @@
                 </section>
 
                 <section>
-                    <pre><code class="hljs rust" data-trim>
-let a = String::from("hello");
+                    <pre><code class="hljs python" data-trim>
+a = "hello"
                     </code></pre>
                 </section>
 
@@ -501,7 +501,7 @@ fn main() {
 
                 <section>
                     <pre><code class="hljs rust" data-trim>
-fn main() -&gt; u8 {
+fn main() {
     let a = 2;
     a = 3;
     println!("{}", a);
@@ -679,6 +679,42 @@ test tests::testing ... ok
                     <img src="_images/rust-issues.png" alt="4.5k issues no Github" class="stretch">
                 </section>
 
+                <section>
+                    <h2>E Quem Usa Rust?</h2>
+
+                    <ul>
+                        <li class="fragment"><a href="https://www.theregister.com/2023/04/27/microsoft_windows_rust/">Microsoft</a></li>
+                        <li class="fragment"><a href="https://www.xda-developers.com/google-developing-android-rust/">Google</a></li>
+                        <li class="fragment">AWS</li>
+                        <li class="fragment">Cloudflare</li>
+                        <li class="fragment">Discord</li>
+                        <li class="fragment">Facebook</li>
+                        <li class="fragment">Sentry</li>
+                        <li class="fragment">Atlassian</li>
+                        <li class="fragment">Dropbox</li>
+                    </ul>
+                </section>
+
+                <section>
+                    <h2>E Quem Usa Rust no Brasil?</h2>
+
+                    <ul>
+                        <li class="fragment">Terramagna</li>
+                        <li class="fragment">iFood</li>
+                        <li class="fragment">Nubank?</li>
+                    </ul>
+                </section>
+
+                <section>
+                    <h2>E Quem usa Rust?</h2>
+
+                    <p>
+                    <a href="https://www.rust-lang.org/production/users">... e outras 131 empresas oficialmente.</a>
+                    </p>
+
+                    <p class="fragment"><a href="https://kerkour.com/rust-in-production-2021">... e mais algumas extra-oficialmente.</a></p>
+                </section>
+
                 <section>
                     <h2>E agora?</h2>