diff --git a/README.md b/README.md
index 4d06019..8a4f427 100644
--- a/README.md
+++ b/README.md
@@ -6,4 +6,5 @@ Web app which returns the iconic Hello, World in various locales
 
 - [x] Print hello world in a random locale
 - [x] Select the locale by id
+- [x] Use with CLI
 - [ ] Serve via internet
diff --git a/cli.ts b/cli.ts
new file mode 100644
index 0000000..d7741b7
--- /dev/null
+++ b/cli.ts
@@ -0,0 +1,33 @@
+import { readLines } from "https://deno.land/std@0.87.0/io/bufio.ts";
+import { ID, sayHello, sayRandomHello, ValidationError } from "./src";
+
+const start = async () => {
+  console.log("Hello, World! (International version)\n");
+  console.log(
+    "🌍 Type a number (between 1 and 78), or leave blank for random language. Type 'quit' to leave.",
+  );
+  console.log("👉 ");
+
+  for await (const line of readLines(Deno.stdin)) {
+    const value = line.trim();
+
+    if (value === "") {
+      console.log(sayRandomHello());
+    } else if (value === "quit") {
+      return;
+    } else {
+      try {
+        const id = new ID(parseInt(value, 10));
+        console.log(sayHello(id));
+      } catch (error) {
+        if (error instanceof ValidationError) {
+          console.error(error.message);
+        } else {
+          throw error;
+        }
+      }
+    }
+  }
+};
+
+await start();
diff --git a/src/index.ts b/src/index.ts
index 97c15b2..7bef041 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,35 +1,5 @@
-import { readLines } from "https://deno.land/std@0.87.0/io/bufio.ts";
 import { ValidationError } from "./errors/exceptions.ts";
 import { ID } from "./types/id.ts";
 import { sayHello, sayRandomHello } from "./usecases/hello.ts";
 
-const start = async () => {
-  console.log("Hello, World! (International version)\n");
-  console.log(
-    "🌍 Type a number (between 1 and 78), or leave blank for random language. Type 'quit' to leave.",
-  );
-  console.log("👉 ");
-
-  for await (const line of readLines(Deno.stdin)) {
-    const value = line.trim();
-
-    if (value === "") {
-      console.log(sayRandomHello());
-    } else if (value === "quit") {
-      return;
-    } else {
-      try {
-        const id = new ID(parseInt(value, 10));
-        console.log(sayHello(id));
-      } catch (error) {
-        if (error instanceof ValidationError) {
-          console.error(error.message);
-        } else {
-          throw error;
-        }
-      }
-    }
-  }
-};
-
-await start();
+export { ID, sayHello, sayRandomHello, ValidationError };