A self-paced DevOps learning platform with 20 tracks covering Linux, cloud, containers, CI/CD, security, and more. Everything runs locally in the browser with no backend required.

• 20 learning tracks organized from beginner to advanced, with modules and individual lessons
• Progress tracking: Lesson completion state is saved automatically in your browser profile
• Profile system: Support for multiple learner profiles, each with independent progress tracking
• Module exams: Quiz-style assessments to test your knowledge at the end of each module
• Notes: Ability to attach personal study notes to any lesson
• Full-text search: Instant search across all 20 tracks, modules, and lessons
• Light / Dark mode: Easy theme toggling from the top navigation bar
• Lesson navigation: Previous/next links within a track and breadcrumb navigation
• No backend required: All data is saved locally using browser localStorage

Before you start, make sure you have the following installed on your computer:

• Node.js v18 or higher: Download from nodejs.org (LTS version is recommended)
  • To check if you already have it: open a terminal and run node -v
• Git: Download from git-scm.com
  • To check if you already have it: run git --version

1. Clone the repository

This downloads the project code to your computer.

git clone https://github.com/<your-username>/devops-lms.git

2. Enter the project folder

cd devops-lms

3. Install dependencies

This installs all the libraries the project needs. It may take a minute.

npm install

4. Start the development server

npm run dev

5. Open the app

Open your browser and go to: http://localhost:3000

You'll be asked to create a learner profile on first launch. Enter any name and click Get Started.

Tip: The development server supports hot reloading. Any changes you make to the code will appear in the browser instantly without restarting the server.

Docker lets you run the app in a container without installing Node.js. This is the recommended way to run it in production.

• Docker Desktop: Download from docker.com and ensure it is running

If the project has been pushed to GitHub, you can pull the ready-made image directly:

docker pull ghcr.io/<github-username>/<repo-name>:latest
docker run -p 3000:3000 ghcr.io/<github-username>/<repo-name>:latest

Then open http://localhost:3000.

If you've cloned the repository and want to build locally:

# Build the image (this takes a few minutes the first time)
docker build -t devops-lms .

# Run the container
docker run -p 3000:3000 devops-lms

Then open http://localhost:3000.

To stop the container, press Ctrl + C in the terminal.

If you want the container to keep running after you close the terminal:

docker run -d -p 3000:3000 --name devops-lms devops-lms

To stop it later:

docker stop devops-lms

docker compose up -d

Example compose file:

services:
  improving-everyday:
    image: ghcr.io/sooraj-sky/improving-everyday:latest
    container_name: devops-local-book

    ports:
      - "3000:3000"

    environment:
      NODE_ENV: production
      PORT: 3000
      HOSTNAME: 0.0.0.0

    restart: unless-stopped

If you want to run the optimised production build directly with Node.js:

# Build the app
npm run build

# Start the production server
npm start

The app will be available at http://localhost:3000. The production build is faster and uses less memory than the development server.

devops-lms/
├── app/                  # Pages and routes (Next.js App Router)
├── components/
│   ├── layout/           # Sidebar, top nav, app shell
│   ├── lesson/           # Lesson viewer, code blocks, quizzes
│   └── ui/               # Reusable UI primitives (buttons, dialogs, etc.)
├── lib/
│   ├── content/          # All 20 learning tracks as TypeScript files
│   └── hooks/            # React hooks (useProfile, useProgress, useNotes, useTheme)
└── public/               # Static assets and screenshots

Each learning track is a single TypeScript file. To add your own:

1. Create lib/content/my-topic.ts by copying the structure of an existing track, such as lib/content/linux.ts
2. Import and add it to the tracks array in lib/content/index.ts
3. Add a gradient colour class for the track card in app/globals.css

npm install fails Make sure you have Node.js v18 or higher. Run node -v to check. If the version is lower, download the latest LTS from nodejs.org.

Port 3000 is already in use Another app is using port 3000. Either stop that app, or run the dev server on a different port:

npm run dev -- -p 3001

Then open http://localhost:3001.

Docker build fails with "Cannot connect to the Docker daemon" Docker Desktop is not running. Open it from your Applications folder (Mac) or Start menu (Windows) and wait for it to fully start before running the build command again.

Changes I make to the code don't appear Make sure the development server (npm run dev) is running. If it is, try refreshing the browser. If the issue persists, stop the server with Ctrl + C and start it again.