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How It All Works

Simple architecture, maximum security, minimum cost. Every app runs in an isolated container behind Cloudflare.

Request Flow

When someone visits any tool, here's exactly what happens:

User Request → Response

User

Browser

phone / laptop

→

CDN + SSL

Cloudflare

HTTPS, DDoS, cache

→

Reverse Proxy

nginx

routes by URL path

→

App Container

Docker

isolated per app

→

Response

HTML/JSON

back to user

Key point: Each app runs in its own Docker container. If one crashes, nothing else is affected. They can't see each other's data. This is the same isolation model that AWS, Google Cloud, and every bank uses.

The Stack

CloudflareGlobal CDN with 300+ data centers
Free plan — SSL, DDoS, caching
nginxRoutes /qr → port 9100, /invoice → port 8800, etc.
Open source — reverse proxy
DockerEach app = isolated container with its own filesystem
docker-compose per project
FastAPI (Python)Handles API requests, serves HTML, runs AI calls
uvicorn ASGI server
Vanilla HTML/CSS/JSNo React, no build step, no node_modules — just files
Loads instantly, works everywhere

How Deployment Works

Push to Deploy

Developer

git push

one command

→

CI/CD

GitHub Actions

auto-triggered

→

Transfer

SCP to VPS

encrypted SSH

→

Build

Docker Build

fresh container

→

Live

Running

health checked

Zero-downtime deploys: Push code → GitHub Actions automatically builds, transfers, and restarts only the affected container. Every other app keeps running. Total deploy time: ~2 minutes.

Security Layers

7 layers of security with zero additional cost:

🔒

HTTPS Everywhere

Cloudflare provides free SSL certificates. All traffic is encrypted end-to-end. HSTS headers enforce HTTPS.

✓ Automatic, free

🛡️

DDoS Protection

Cloudflare absorbs attacks before they reach the server. 300+ data centers filter malicious traffic globally.

✓ Always on, free tier

📦

Container Isolation

Each app runs in its own Docker container with its own filesystem. If one app is compromised, others are unaffected.

✓ Process + network isolation

🚪

No Public Ports

Containers bind to localhost only (127.0.0.1). The only public entry point is nginx on port 80. No direct container access from the internet.

✓ Zero attack surface

🙈

Hidden Server IP

Cloudflare proxy hides the real server IP address. Attackers can't find or target the VPS directly.

✓ Proxied via Cloudflare

🔑

Secrets Management

API keys and passwords stored in GitHub Secrets. Injected at deploy time. Never in code, never in Git history.

✓ Zero secrets in source code

🧹

Auto Cleanup

Weekly Docker prune removes old images and build cache. Prevents disk fill and stale container vulnerabilities.

✓ Automated maintenance

🌐

Client-Side by Default

Most tools (password, QR, countdown, invoice) run 100% in the browser. No data sent to any server. Privacy by design.

✓ Your data stays local

Running Containers

Each project gets its own container on a dedicated port. nginx routes by URL path:

homepage

:9200 → /

Landing page

memory-api

:8100 → /api/v1/

Agent memory + ideas

crypto-bots

:8600 → /login

Trading dashboard

qr-gen

:9100 → /qr/

QR code generator

countdown

:9000 → /countdown/

Event countdown

password-gen

:8900 → /password/

Password generator

invoice-gen

:8800 → /invoice/

Invoice creator

name-generator

:8700 → /namegen/

Business names

compare-ai

:8500 → /compare/

Tool comparison

fullstack-tutorial

:8300 → /fullstacktutorial/

Course site

claude-code-guide

:8400 → /claudecode/

Beginner guide

xcaret-map

:8200 → /xcaret/

GPS resort map

Monthly Cost

Everything runs on one VPS. Total cost for 12 live applications:

Service	What it does	Cost
Contabo VPS (CX22)	4 vCPU, 8GB RAM, 50GB SSD — runs all containers	$6.99/mo
GoDaddy Domain	connectusai.com	$1.00/mo
Cloudflare	CDN, SSL, DDoS protection, DNS	FREE
GitHub	Code hosting, CI/CD, secrets management	FREE
Docker	Container runtime	FREE
nginx	Reverse proxy	FREE
OpenRouter API	AI for name generator (Gemini Flash)	~$0.50/mo
Total		~$8.50/mo

$8.50/month for 12 live applications with SSL, CDN, DDoS protection, auto-deploy, and container isolation. That's $0.71 per application per month. Enterprise-grade infrastructure at hobby prices.

Build Your Own

This entire platform was built by one person using Claude Code. You can learn the exact same setup:

🎓

Step 1: Install Claude Code

Complete beginner guide. Install, authenticate, write your first prompt. 10 minutes.

→ Start here

🚀

Step 2: Full Stack Tutorial

Set up VPS, domain, Cloudflare, Docker, GitHub Actions. Deploy your first app.

→ Learn the stack

💡

Step 3: Pick an Idea

260+ project ideas with revenue models, tech stacks, and priority rankings.

→ Browse ideas