The Fastest Way to Test Any GitHub Project Locally

What You'll Learn

A workflow for testing any GitHub project in 2 minutes - no Docker Compose, no manual setup, no debugging. Just clone and run.

• Deploy any project with 2 commands
• Automatic project detection and Docker config
• Healthchecks and .env templates included
• Works with Python, Node, Go, Rust, PHP projects

The Problem

You find an interesting GitHub project. You want to test it. Here's what usually happens:

1. Clone the repo
2. Read the README for 20 minutes
3. Realize the Docker setup is incomplete or outdated
4. Write a Dockerfile
5. Write docker-compose.yml
6. Add healthchecks manually
7. Set up .env with the right variables
8. Debug for an hour

Total time: 1-3 hours. Often you give up.

The Solution

stacker init --from-github owner/repo --with-ai --force
stacker deploy --target local

How It Works

1. Stacker clones the repo

stacker init --from-github https://github.com/plausible/analytics --force

2. It detects the project type

Stacker reads the repo and figures out:

• Language (Python, Node, Go, Rust, PHP)
• Framework (Flask, Express, Gin, Actix)
• Services (PostgreSQL, Redis, Elasticsearch, etc.)
• Port mappings from docker-compose.yml or source

3. It generates the Docker config

# What gets created:
stacker.yml                 # Deployment config
.stacker/Dockerfile         # Optimized for the project
.stacker/docker-compose.yml # Production-ready
.env.example                # All env vars with placeholders
scripts/generate-secrets.sh # Auto-generates passwords

4. You deploy

cp .env.example .env
./scripts/generate-secrets.sh
stacker deploy --target local

Real Examples

Test a password manager

mkdir ~/vaultwarden && cd ~/vaultwarden
stacker init --from-github dani-garcia/vaultwarden --with-ai --force
cp .env.example .env && ./scripts/generate-secrets.sh
stacker deploy --target local
# Running at http://localhost:8080

Test a wiki

mkdir ~/wiki && cd ~/wiki
stacker init --from-github Requarks/wiki --with-ai --force
cp .env.example .env && ./scripts/generate-secrets.sh
stacker deploy --target local
# Running at http://localhost:3000

Test a code editor

mkdir ~/editor && cd ~/editor
stacker init --from-github coder/code-server --with-ai --force
cp .env.example .env && ./scripts/generate-secrets.sh
stacker deploy --target local
# Running at http://localhost:8080

Test a file manager

mkdir ~/files && cd ~/files
stacker init --from-github filebrowser/filebrowser --with-ai --force
cp .env.example .env && ./scripts/generate-secrets.sh
stacker deploy --target local
# Running at http://localhost:8080

What If Detection Fails?

If Stacker can't auto-detect the project, it falls back to asking you or using the project's existing Dockerfile. You can also use AI to help:

stacker init --from-github owner/repo --with-ai --force
# AI reads the README and source code to figure out the stack

Customizing After Deployment

Edit stacker.yml to change ports, add services, or configure networking:

# Change the port
app:
  ports:
    - "8081:8080"

# Add a database
services:
  - name: postgres
    image: postgres:16-alpine
    environment:
      POSTGRES_DB: myapp
      POSTGRES_PASSWORD: "${DB_PASSWORD}"
    volumes:
      - pg_data:/var/lib/postgresql/data

# Add a reverse proxy
proxy:
  type: nginx
  auto_detect: true
  domains:
    - domain: myapp.local
      ssl: off
      upstream: app:8080

Cleaning Up

# Stop everything
stacker destroy --target local

# Remove all generated files
rm -rf .stacker stacker.yml .env .env.example scripts/

The Full Workflow

# 1. Find a project
# 2. Test it in 2 minutes
mkdir ~/project && cd ~/project
stacker init --from-github owner/repo --with-ai --force
cp .env.example .env && ./scripts/generate-secrets.sh
stacker deploy --target local

# 3. Like it? Deploy to a server
stacker config setup server
stacker deploy --target server

# 4. Done. Two commands from GitHub to production.

Key Takeaways

• Any GitHub project can be tested in 2 minutes
• Stacker handles detection, Docker config, healthchecks, and secrets
• Works with Python, Node, Go, Rust, PHP, and more
• The same config works on local, server, or cloud
• Source: github.com/trydirect/stacker