How to Setup Coolify v4 on Bare Metal: The Vercel Killer

The Vercel Tax Problem

Vercel offers an incredible developer experience. However, at scale, the convenience comes with a "PaaS Tax." With bandwidth often priced at a 4000% markup over raw infrastructure, growing startups face massive egress bills. **Coolify v4** allows you to host your own PaaS on **ServerMO Bare Metal**, giving you Vercel-like DX with predictable, flat-rate pricing.

Step 1: Secure Dashboard Access

During initial setup, exposing port 8000 to the public web is a security risk. A more professional approach is using an SSH Tunnel to access the dashboard privately on your local machine.

# Run this on your LOCAL computer (Laptop)
ssh -L 8000:localhost:8000 root@your_servermo_ip

Open http://localhost:8000 in your browser. This tunnel ensures the admin registration page remains invisible to the public internet while you set your credentials.

Step 2: Bare Metal RAM Utilization

Shared VPS environments often require "Swap Space" because of thin RAM limits. **ServerMO Bare Metal** provides massive dedicated memory (64GB to 512GB). By performing builds directly in RAM, you bypass the disk-IO bottlenecks and build-queue delays common in managed cloud platforms.

# Standard system update & optimization
sudo apt update && sudo apt upgrade -y

Step 3: The One-Line Installation

Coolify v4 simplifies the PaaS stack by automating the setup of Docker Engine and the Traefik edge proxy.

curl -fsSL https://cdn.coollabs.io/coolify/install.sh | bash

Step 4: Hardening the Firewall (UFW)

Expose only the essential ports for application traffic and automated SSL certificate challenges.

# Allow Web Traffic and SSH
sudo ufw allow 80/tcp
sudo ufw allow 443/tcp
sudo ufw allow 22/tcp

# Enable Firewall
sudo ufw enable

Step 5: DNS & SSL Configuration

Point your A-record to the Bare Metal IP. For automated subdomain deployments, Coolify supports HTTP-01 challenges out of the box.

Step 6: Off-site S3 Backups

In a self-hosted PaaS, data sovereignty includes data recovery. Coolify v4 allows you to automate database and application backups to any S3-compatible destination.