diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f669537..4d04f09 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,13 +11,13 @@ jobs:
     name: Type Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
-          node-version: 22
+          node-version: 24
           cache: pnpm
 
       - name: Install dependencies
@@ -31,13 +31,13 @@ jobs:
     runs-on: ubuntu-latest
     needs: typecheck
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
-          node-version: 22
+          node-version: 24
           cache: pnpm
 
       - name: Install dependencies
@@ -50,13 +50,13 @@ jobs:
     name: Security Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
-          node-version: 22
+          node-version: 24
           cache: pnpm
 
       - name: Install dependencies
diff --git a/.github/workflows/wiki-sync.yml b/.github/workflows/wiki-sync.yml
index 6c20918..8d900eb 100644
--- a/.github/workflows/wiki-sync.yml
+++ b/.github/workflows/wiki-sync.yml
@@ -19,18 +19,31 @@ jobs:
   sync:
     name: Sync docs to GitHub Wiki
     runs-on: ubuntu-latest
+    env:
+      WIKI_PAT: ${{ secrets.WIKI_PAT }}
     steps:
+      - name: Check WIKI_PAT secret
+        if: env.WIKI_PAT == ''
+        run: |
+          echo "::error::WIKI_PAT secret is missing. Add it in Settings → Secrets and variables → Actions."
+          exit 1
+
       - name: Checkout main repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 1
 
+      - name: Setup Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+
       - name: Checkout wiki repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: andriansandi/inbix.wiki
           path: wiki
-          token: ${{ secrets.WIKI_PAT }}
+          token: ${{ env.WIKI_PAT }}
 
       - name: Sync documentation files
         run: bash scripts/sync-wiki.sh
diff --git a/.nvmrc b/.nvmrc
index 2bd5a0a..a45fd52 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-22
+24
diff --git a/AGENTS.md b/AGENTS.md
index 5b2fce4..1e4adcf 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -7,6 +7,7 @@ Monorepo: pnpm workspaces + turbo. Single Cloudflare Worker serves API + SPA.
 
 - Repo: `git@github.com:andriansandi/inbix.git`
 - Production: `https://inbix.xyz`
+- Minimum Node.js version: **24** (see `.nvmrc`)
 
 ## Local Development
 
@@ -49,6 +50,7 @@ npx wrangler d1 execute inbix --local --config wrangler.jsonc --command="INSERT
 - User merges via GitHub UI
 - After merge: `git checkout main && git pull`
 - Deployment is done via GitHub (CI/CD), NOT manual `wrangler deploy`
+- The `wiki-sync.yml` workflow requires a repository secret named `WIKI_PAT` (PAT with `repo` scope) to push docs to the GitHub Wiki
 - User communicates in Indonesian; respond in same language
 - **At the start of every session: run `pnpm dev` locally to ensure web + API are running before starting any work**
 - Run `pnpm typecheck` before PR
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 19c1289..e6ad072 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -4,7 +4,7 @@ Thank you for your interest in contributing to Inbix! This document covers every
 
 ## Prerequisites
 
-- Node.js 22+
+- Node.js 24+
 - pnpm 11+
 - A Cloudflare account (for testing Workers locally)
 - Git
diff --git a/README.md b/README.md
index a4316c4..1a95d1c 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,12 @@ Then follow the [Deployment Guide](https://github.com/andriansandi/inbix/wiki/De
 
 For local development, see the [Development Guide](https://github.com/andriansandi/inbix/wiki/Development).
 
+## Requirements
+
+- **Node.js** 24+ ([`.nvmrc`](./.nvmrc))
+- **pnpm** 11+ ([package.json](./package.json))
+- A **Cloudflare account** with a domain managed by Cloudflare DNS
+
 ## What is Inbix?
 
 Inbix is an open-source, Cloudflare-native email infrastructure platform. It gives you disposable, programmable inboxes that can be created and consumed through a REST API, TypeScript SDK, webhooks, and an official MCP server — making it ideal for developers, test automation, CI/CD, and AI agents.
@@ -181,7 +187,9 @@ inbix/
 
 ## Documentation
 
-All detailed documentation lives in the [GitHub Wiki](https://github.com/andriansandi/inbix/wiki):
+All detailed documentation lives in the [GitHub Wiki](https://github.com/andriansandi/inbix/wiki). The Wiki is kept in sync with this repository via [`.github/workflows/wiki-sync.yml`](./.github/workflows/wiki-sync.yml). To enable auto-sync, create a one-time repository secret named **`WIKI_PAT`** in `Settings → Secrets and variables → Actions` (use a Personal Access Token with `repo` scope).
+
+Wiki pages:
 
 - [Quick Start](https://github.com/andriansandi/inbix/wiki/Quick-Start)
 - [Deployment Guide](https://github.com/andriansandi/inbix/wiki/Deployment)
diff --git a/docs/DEPLOYMENT.md b/docs/DEPLOYMENT.md
index a4b57a1..44a2cd7 100644
--- a/docs/DEPLOYMENT.md
+++ b/docs/DEPLOYMENT.md
@@ -5,7 +5,7 @@ This guide walks through deploying Inbix to Cloudflare from scratch.
 ## Prerequisites
 
 1. **Cloudflare Account** — [Sign up](https://dash.cloudflare.com/sign-up) (free tier is sufficient)
-2. **Node.js 22+** — [Download](https://nodejs.org) (required by pnpm 11's `node:sqlite`)
+2. **Node.js 24+** — [Download](https://nodejs.org) (required by pnpm 11's `node:sqlite`; see repo `.nvmrc`)
 3. **pnpm** — `npm install -g pnpm`
 4. **Domain in Cloudflare** — Your domain must use Cloudflare DNS for Email Routing
 
diff --git a/docs/DEVELOPMENT.md b/docs/DEVELOPMENT.md
index baaaaef..71cbe94 100644
--- a/docs/DEVELOPMENT.md
+++ b/docs/DEVELOPMENT.md
@@ -2,6 +2,14 @@
 
 ## Local Setup
 
+### Requirements
+
+- Node.js 24+ (see repo `.nvmrc`)
+- pnpm 11+
+- A Cloudflare account (for local D1/R2/KV emulation)
+
+### Install
+
 ```bash
 git clone https://github.com/andriansandi/inbix.git
 cd inbix
diff --git a/package.json b/package.json
index 81e7bad..3ae7b18 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,6 @@
   },
   "packageManager": "pnpm@11.9.0",
   "engines": {
-    "node": ">=22"
+    "node": ">=24"
   }
 }