feat: simplify installation with custom Node.js script

.env.sample

@@ -82,7 +82,7 @@ LEON_AFTER_SPEECH=false
 
 # Enable/disable skills to be available over HTTP
 LEON_OVER_HTTP=true
-# HTTP API key (use "npm run generate:http-api-key" to regenerate one)
+# HTTP API key (use "pnpm run generate:http-api-key" to regenerate one)
 LEON_HTTP_API_KEY=
 # Language used for the HTTP API
 LEON_HTTP_API_LANG=en-US

.husky/commit-msg

@@ -1,8 +1 @@
-if ! [ -x "$(command -v npm)" ]; then
-  echo "npm: command not found"
-  echo "If you use a version manager tool such as nvm and a git GUI such as GitKraken, please read: https://typicode.github.io/husky/how-to.html#node-version-managers-and-guis" >&2
-  exit 1
-else
-  npx tsx scripts/commit-msg.js
-fi
-
+tsx scripts/commit-msg.js

.husky/pre-commit

@@ -1,7 +1 @@
-if ! [ -x "$(command -v npm)" ]; then
-  echo "npm: command not found"
-  echo "If you use a version manager tool such as nvm and a git GUI such as GitKraken, please read: https://typicode.github.io/husky/how-to.html#node-version-managers-and-guis" >&2
-  exit 1
-else
-  npm run pre-commit
-fi
+lint-staged

.lintstagedrc

@@ -1,3 +1,3 @@
 {
-  "*": ["npm run lint"]
+  "*": ["pnpm run lint"]
 }

README.md

@@ -164,11 +164,10 @@ git clone https://github.com/leon-ai/leon.git
 # Go to the project root
 cd leon
 
-# Install pnpm
-npm install --global pnpm@latest
+# Install
+node install.mjs
 
-# Install dependencies and run Leon
-pnpm install
+# Run Leon
 pnpm start
 ```
 

install.mjs

@@ -0,0 +1,75 @@
+import { spawn, spawnSync } from 'node:child_process'
+
+const isWindows = process.platform === 'win32'
+const npmCommand = isWindows ? 'npm.cmd' : 'npm'
+const pnpmCommand = isWindows ? 'pnpm.cmd' : 'pnpm'
+const voltaCommand = isWindows ? 'volta.cmd' : 'volta'
+
+function exitWithError(message) {
+  console.error(`\x1b[31m✖ ${message}\x1b[0m`)
+  process.exit(1)
+}
+
+function getNodeMajorVersion() {
+  const [majorVersion] = process.versions.node.split('.')
+
+  return Number.parseInt(majorVersion, 10)
+}
+
+function getCommandOutput(command, args) {
+  const result = spawnSync(command, args, {
+    encoding: 'utf8',
+    stdio: ['ignore', 'pipe', 'pipe']
+  })
+
+  if (result.error || result.status !== 0) {
+    return null
+  }
+
+  return result.stdout.trim()
+}
+
+async function runCommand(command, args) {
+  await new Promise((resolve, reject) => {
+    const child = spawn(command, args, {
+      stdio: 'inherit'
+    })
+
+    child.on('error', reject)
+    child.on('exit', (code, signal) => {
+      if (signal) {
+        reject(new Error(`Command interrupted by ${signal}`))
+
+        return
+      }
+
+      if (code === 0) {
+        resolve()
+
+        return
+      }
+
+      reject(new Error(`${command} exited with code ${code}`))
+    })
+  })
+}
+
+if (getNodeMajorVersion() < 24) {
+  exitWithError(
+    `I require Node.js >= 24.0.0. Detected ${process.version}.`
+  )
+}
+
+console.info('\x1b[36m➡ %s\x1b[0m', 'I\'m checking pnpm...')
+
+const hasVolta = getCommandOutput(voltaCommand, ['--version']) !== null
+
+console.info('\x1b[36m➡ %s\x1b[0m', 'I\'m installing pnpm...')
+
+if (hasVolta) {
+  await runCommand(voltaCommand, ['install', 'pnpm@latest'])
+} else {
+  await runCommand(npmCommand, ['install', '--global', 'pnpm@latest'])
+}
+
+await runCommand(pnpmCommand, ['install'])

package.json

@@ -20,6 +20,16 @@
   "engines": {
     "node": ">=24.0.0"
   },
+  "devEngines": {
+    "runtime": {
+      "name": "node",
+      "onFail": "error"
+    },
+    "packageManager": {
+      "name": "pnpm",
+      "onFail": "error"
+    }
+  },
   "volta": {
     "node": "24.13.1"
   },

scripts/setup/preinstall.js

@@ -1 +1 @@
-console.info('\x1b[36m➡ %s\x1b[0m', 'Running my installation...')
+console.info('\x1b[36m➡ %s\x1b[0m', 'I\'m installing myself...')