diff --git a/example/src/editor.ts b/example/src/editor.ts
index 5cd17b7..a26f1d8 100644
--- a/example/src/editor.ts
+++ b/example/src/editor.ts
@@ -1,4 +1,4 @@
-export function setupEditor(input: HTMLTextAreaElement) {
+export function setupEditor(input: HTMLTextAreaElement, runButton: HTMLButtonElement) {
 	input.addEventListener("keydown", (e) => {
 		switch (e.key) {
 			case "Tab": {
@@ -8,6 +8,7 @@ export function setupEditor(input: HTMLTextAreaElement) {
 				input.setRangeText("  ", start, end, "end");
 				break;
 			}
+
 			case "Backspace": {
 				let [start, end] = [input.selectionStart, input.selectionEnd];
 				if (start !== end) {
@@ -22,6 +23,20 @@ export function setupEditor(input: HTMLTextAreaElement) {
 				}
 				start >= 0 && input.setRangeText("", start, end, "end");
         input.dispatchEvent(new Event("input"))
+				break;
+			}
+		
+			case "Enter": {
+				e.preventDefault();
+				e.stopPropagation();
+				if (e.ctrlKey) {
+					runButton.click();
+				} else {
+					// TODO: Add indentation based on previous line
+					input.setRangeText("\n" + " ".repeat(0), input.selectionStart, input.selectionEnd, "end");
+				}
+				input.dispatchEvent(new Event("input"));
+				break;
 			}
 		}
 	})
diff --git a/example/src/interpreter/index.ts b/example/src/interpreter/index.ts
index 7b63da8..f11210c 100644
--- a/example/src/interpreter/index.ts
+++ b/example/src/interpreter/index.ts
@@ -57,11 +57,11 @@ export class Interpreter {
    * 
    * @param code Code that will be interpreted.
    */
-  public run(code: string) {
+  public run(code: string, printLast: boolean = false) {
     for (const ev of this.onrun) {
       ev()
     }
-    this.worker.postMessage(code);
+    this.worker.postMessage({code, printLast});
   }
   
   /**
diff --git a/example/src/interpreter/interpreter.ts b/example/src/interpreter/interpreter.ts
index 1286aca..22791b3 100644
--- a/example/src/interpreter/interpreter.ts
+++ b/example/src/interpreter/interpreter.ts
@@ -73,13 +73,17 @@ class Interpreter {
     this.next_thread_id = 1;
   }
 
-  async run(code: string): Promise<string> {
+  async run(code: string, printLast: boolean = false): Promise<string> {
     this.stdin.clear();
     this.stdout.clear();
     this.stderr.clear();
     
     // Set the contents of the `main.rs` file to the new code
-    this.fds[5].dir.get_file("main.rs")!.data = new TextEncoder().encode(`fn main() {\n${code}\n}`);
+    code = `let _code = (|| {\n${code}\n})();`;
+    if (printLast) {
+      code += '\nif std::any::Any::type_id(&_code) != std::any::TypeId::of::<()>() { println!("{_code:?}") }';
+    }
+    this.fds[5].dir.get_file("main.rs")!.data = encode(`fn main() {\n${code}\n}`);
     
     // Instantiate Miri
     const inst = await WebAssembly.instantiate(this.miri, {
@@ -219,4 +223,12 @@ async function buildSysroot(): Promise<PreopenDirectory> {
       ])],
     ])],
   ])
+}
+
+function encode(text: string): Uint8Array {
+  return new TextEncoder().encode(text);
+}
+
+function file(name: string, text: string): [string, File] {
+  return [name, new File(encode(text))]
 }
\ No newline at end of file
diff --git a/example/src/interpreter/worker.ts b/example/src/interpreter/worker.ts
index 1dd4e41..566a64c 100644
--- a/example/src/interpreter/worker.ts
+++ b/example/src/interpreter/worker.ts
@@ -6,8 +6,11 @@ import { initInterpreter } from "./interpreter";
   
   // When code is received run it
   addEventListener("message", async (event) => {
-    const code = event.data;
-    const result = await interpreter.run(code);
+    const {
+      code, 
+      printLast
+    } = event.data;
+    const result = await interpreter.run(code, printLast);
     postMessage({ result });
   });
   
diff --git a/example/src/pages/index.astro b/example/src/pages/index.astro
index 68311ef..fd4acc3 100644
--- a/example/src/pages/index.astro
+++ b/example/src/pages/index.astro
@@ -20,6 +20,8 @@ const base = import.meta.env.BASE_URL === "/" ? "" : import.meta.env.BASE_URL;
 			<div id="live-edit-wrapper">
 				<input id="live-edit" type="checkbox" checked />
 				<label for="live-edit">Live Edit</label>
+				<input id="print-last" type="checkbox" checked />
+				<label for="print-last">Print last expression</label>
 			</div>
 			<textarea id="input" spellcheck="false" />
 			<button>RUN</button>
@@ -69,8 +71,9 @@ const base = import.meta.env.BASE_URL === "/" ? "" : import.meta.env.BASE_URL;
 	import { AnsiUp } from "ansi_up";
 	
 	const input = document.body.querySelector<HTMLTextAreaElement>("textarea#input")!;
-	const button = document.body.querySelector<HTMLButtonElement>("button")!;
+	const runButton = document.body.querySelector<HTMLButtonElement>("button")!;
 	const liveEdit = document.body.querySelector<HTMLInputElement>("#live-edit")!;
+	const printLast = document.body.querySelector<HTMLInputElement>("#print-last")!;
 	const termElement = document.getElementById("terminal")!;
 
 	const ansiUp = new AnsiUp();
@@ -89,38 +92,39 @@ const base = import.meta.env.BASE_URL === "/" ? "" : import.meta.env.BASE_URL;
 	interpreter.onLoaded(() => {
 		input.readOnly = false;
 		input.value = 'println!("Hello from WASM!");';
-		interpreter.run(input.value);
+		runButton.click();
+		// interpreter.run(input.value);
 	});
 
 	// When Interpreter is running disable the "Run" button
 	interpreter.onRun(() => {
-		button.disabled = true;
+		runButton.disabled = true;
 		termElement.innerHTML = "Running...";
 	});
 
 	// When result is received from a running Interpreter write it to the terminal
 	interpreter.onResult(result => {
 		termElement.innerHTML = ansiUp.ansi_to_html(result.replaceAll("\n", "\r"));
-		button.disabled = false;
+		runButton.disabled = false;
 		if (lastInput && lastInput !== input.value) {
 			input.dispatchEvent(new Event("input"));
 		}
 	});
-
-	setupEditor(input);
+	
+	setupEditor(input, runButton);
 
 	// Run the Interpreter when on "Live Edit" or the "Run" button is clicked
 	input.addEventListener("input", async () => {
-		if (!liveEdit.checked || button.disabled) {
+		if (!liveEdit.checked || runButton.disabled) {
 			return;
 		}
 		lastInput = input.value;
-		interpreter.run(input.value || "");
+		interpreter.run(input.value || "", printLast.checked);
 	});
-	button.addEventListener("click", async () => {
-		if (button.disabled) {
+	runButton.addEventListener("click", async () => {
+		if (runButton.disabled) {
 			return;
 		}
-		interpreter.run(input.value || "");
+		interpreter.run(input.value || "", printLast.checked)
 	});
 </script>
\ No newline at end of file