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chore: document Node 22 requirement #286

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chore: document Node 22 requirement #286

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1 change: 1 addition & 0 deletions .nvmrc
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22
6 changes: 3 additions & 3 deletions README.md
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Expand Up @@ -252,7 +252,7 @@ No container runtime required. The steps below use Ubuntu/Debian; adapt package

### Prerequisites

- **Node.js 20+** — [nodejs.org](https://nodejs.org) or via your package manager
- **Node.js 22 (LTS)** — [nodejs.org](https://nodejs.org) or via your package manager. Newer majors break the backend: Node's built-in `fetch` conflicts with the pinned `undici` dispatcher.
- **PostgreSQL 16+**
- **Redis 7+**
- **nginx** — serves the built frontend and proxies API/WebSocket requests to the backend
Expand All @@ -261,8 +261,8 @@ No container runtime required. The steps below use Ubuntu/Debian; adapt package

**Ubuntu / Debian:**
```bash
# Node.js 20 via NodeSource
curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
# Node.js 22 via NodeSource
curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash -
sudo apt-get install -y nodejs postgresql redis-server nginx
```

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3 changes: 3 additions & 0 deletions backend/package.json
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Expand Up @@ -2,6 +2,9 @@
"name": "mailflow-backend",
"version": "2.6.0",
"type": "module",
"engines": {
"node": ">=22 <23"
},
"scripts": {
"start": "node src/index.js",
"dev": "node --watch src/index.js",
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