diff --git a/README.md b/README.md
index 7464fea..641c1ab 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,13 @@ npm i -g runme
 runme list
 ```
 
+By default this package downloads the [Runme CLI](https://github.com/stateful/runme) when the interface is used for the first time. You can download it after running `npm install` by setting the `RUNME_DOWNLOAD_ON_INSTALL` environment flag. You can also modify the Runme version that is being installed by setting `RUNME_VERSION`, e.g.:
+
+```sh
+RUNME_DOWNLOAD_ON_INSTALL=1 RUNME_VERSION=1.0.0 npm install runme
+npx runme --version
+```
+
 ## Usage
 
 The module exposes the following methods:
diff --git a/package-lock.json b/package-lock.json
index 2ca31dc..8f40359 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,13 @@
 {
   "name": "runme",
-  "version": "0.4.4",
+  "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "runme",
-      "version": "0.4.4",
+      "version": "1.0.0",
+      "hasInstallScript": true,
       "license": "Apache-2.0",
       "dependencies": {
         "@actions/exec": "^1.1.1",
diff --git a/package.json b/package.json
index 8208866..f84d0e4 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
     "clean": "rimraf dist",
     "compile": "tsc -p ./tsconfig.json",
     "copy": "cp src/cjs/package.json dist/cjs/package.json",
+    "postinstall": "node ./postInstall.js",
     "release": "release-it --github.release --ci --npm.skipChecks --no-git.requireCleanWorkingDir",
     "test": "run-s test:*",
     "test:nodejs": "vitest --config ./vitest.config.ts",
diff --git a/postInstall.js b/postInstall.js
new file mode 100644
index 0000000..b69bb74
--- /dev/null
+++ b/postInstall.js
@@ -0,0 +1,9 @@
+import fs from 'node:fs/promises'
+
+const isCompiled = await fs.access('./dist').then(() => true, () => false)
+if (isCompiled && process.env.RUNME_DOWNLOAD_ON_INSTALL) {
+  const { download } = await import('./dist/installer.js')
+  const version = process.env.RUNME_VERSION || 'latest'
+  console.log(`Download Runme ${version}`)
+  await download(version)
+}