# How to Vibe Code Your Own ExpressVPN (and Stop Paying for It) > Best VPN Service for Speed & Privacy - Site: https://expressvpn.com - Category: Cybersecurity & Privacy - Platforms: macOS app, Windows app, Linux, iOS app, Android app, Web app, Browser extension - Verdict: **Impossible** (8/100 vibecodeable) - Estimated effort: a weekend for a basic personal WireGuard toggle script; impossible to replicate the full commercial product ## Verdict You cannot build a commercial-grade VPN network and global security ecosystem as a solo project, but you can build a personal self-hosted WireGuard tunnel manager in a weekend. While a solo developer can easily spin up a personal WireGuard server on a cheap VPS using AI coding tools, replicating ExpressVPN requires maintaining physical or virtual server infrastructure across over a hundred countries, writing deep native kernel extensions for Windows and macOS to handle kill switches safely, and engineering custom secure protocols like Lightway. Furthermore, a commercial privacy service relies entirely on trusted legal jurisdictions, independent security audits, and millions in capital for transit bandwidth. Paying for the service is the only rational option unless you just want to learn Linux networking by building a personal remote gateway. ### What you can't replicate - Physical and virtual server footprints in 113 countries with dedicated 10Gbps/40Gbps transit links - System-level kernel network filter integrations across Windows, macOS, and mobile operating systems - Audited zero-logs RAM-only server architecture (TrustedServer) - Established brand trust, legal positioning in the British Virgin Islands, and multi-million dollar third-party security audits ## What it does Commercial virtual private network and digital privacy suite offering encrypted global servers, custom tunneling protocols, password management, and threat prevention across desktop, mobile, and router hardware. ### Core features - Secure VPN connection with global gateway nodes in 113 countries - Proprietary low-level tunneling protocol (Lightway/WireGuard equivalent) - System-level Internet Kill Switch and Split Tunneling hooks - RAM-only zero-logs server orchestration (TrustedServer) - Zero-knowledge password manager and multi-factor authentication - Ad-tracker blocking Threat Manager and encrypted DNS resolver - Cross-platform client applications (Desktop, Mobile, Extensions) ## The business ### Pricing - Basic Tier: $2.99/mo - Advanced Tier: $4.49/mo - Express Pro Tier: $7.49/mo Founded 2009. Team size: Hundreds globally. ## The hard parts - Writing kernel and system-level extensions (Windows Filtering Platform, macOS Network Extensions) for reliable packet interception and kill switches - Maintaining distributed multi-country server infrastructure with high-bandwidth 10Gbps/40Gbps transit links and automated provisioning - Engineering a custom high-performance protocol (Lightway) resistant to packet inspection, NAT traversal failures, and network handovers - Managing strict zero-knowledge architecture with RAM-only ephemeral node booting ## How to vibe code ExpressVPN ### Prerequisites - Node.js (free): Required to run local web tooling and interface scripts. - GitHub (free): For version control and storing your personal gateway configuration code. - Hetzner Cloud VM (~€4/mo): A cheap remote VPS to act as your private personal VPN gateway node. ### Recommended AI tools - Claude Code: Best-in-class agentic coding tool for scaffolding your personal tunnel manager and scripts directly from your terminal. - Cursor: Ideal AI code editor for reviewing and tweaking your setup scripts and local dashboard interface. ### Stack - Frontend: Next.js - Backend: Node.js - Database: Turso - Auth: better-auth - Payments: None (Personal use) - Other: WireGuard, Docker ### Hosting - Hetzner (Hosting your personal private WireGuard VPN gateway node): ~€4/mo - Cloudflare (Hosting the personal dashboard web UI on static edge pages): $0/mo ### Build guide 1. **Scaffold Personal VPN Dashboard & Control Panel** — Initialize a Next.js application with TypeScript and Tailwind CSS to serve as your personal remote tunnel management dashboard. ``` Create a new Next.js project configured with TypeScript and Tailwind CSS using standard app router conventions. Build a clean, dark-mode single-page dashboard designed for personal monitoring. The dashboard should display connection status ('Protected' vs 'Unprotected'), current external IP address lookup, active gateway node location, and a large toggle button to simulate connecting or disconnecting the tunnel. Ensure all UI elements are fully responsive and styled with modern utility classes. ``` 2. **Configure Database and Local Authentication** — Set up Turso for lightweight SQLite database storage and integrate better-auth to secure your personal admin access. ``` Integrate better-auth into the Next.js application using Turso as the relational SQLite data layer over HTTP. Configure single-user email/password authentication so only you can access your personal dashboard. Create database migrations and schema definitions for storing server configurations, connection logs, and trusted endpoint metadata. ``` 3. **Provision Remote WireGuard Server Scripts** — Write automated setup scripts using Docker and WireGuard to deploy your private gateway node onto a remote VPS. ``` Write a comprehensive bash script and a Docker Compose configuration for deploying a WireGuard VPN server (using linuxserver/wireguard) on a remote Hetzner VPS. The script must configure IP forwarding, iptables NAT masquerading rules, and generate peer client configuration files (.conf) with public/private key pairs automatically. Include instructions and endpoints for verifying packet forwarding and checking for DNS leaks. ``` 4. **Implement Client Configuration Generator** — Build an internal API route that generates and downloads WireGuard peer profiles for your personal devices. ``` Build a Next.js backend API route that interacts with your remote WireGuard instance to dynamically generate, sign, and download client configuration files (.conf) and QR codes for mobile devices. Ensure that keys are securely handled, stored in Turso with proper encryption at rest, and that client peer allocations are tracked against your personal device limit. ``` 5. **Add Kill-Switch and Status Verification Checks** — Incorporate client-side monitoring checks and network reachability alerts to warn if the tunnel drops. ``` Implement a lightweight background health-check utility within the Next.js dashboard that periodically polls a public IP checker endpoint to verify that your active traffic matches your remote gateway node's IP address. If a discrepancy or connection timeout is detected, trigger a visual warning banner alerting you to a potential IP leak or tunnel disconnection. ``` ### Cost vs paying **Starting costs (one-time):** - Hetzner Cloud Account Setup: €0 - AI Coding Assistant Subscriptions: $20 - Total: ~$20 one-time **Ongoing costs (monthly):** - Hetzner VPS VM: ~€4/mo - Total: ~€4/mo - Paying for the SaaS instead: $2.99 - $7.49/mo - Build time: 15-25 hours (Learning & Setup) - AI tool credits: $20 (Claude Pro / Cursor) - Break-even: Never (Commercial service includes 113 countries and proprietary protocols; personal build is for learning only) ## Sources - [ExpressVPN Official Website & Product Pages](https://www.expressvpn.com) - [Investegate - $936m Acquisition of ExpressVPN](https://www.investegate.co.uk) - [Wikipedia - ExpressVPN](https://en.wikipedia.org/wiki/ExpressVPN) - [Kape Technologies - About Us & Metrics](https://www.kape.com/about-us)