Environment Variables Tutorial 2025: .env + python-dotenv + Secrets Security | Zero to Hero Ep.6
Episode 6: Environment Variables 101 — .env + bashrc + Secrets — Zero to Hero Course
Master secure configuration management. In this episode, you'll learn:
✅ Why environment variables matter (with fun restaurant analogy)
✅ How to create and use .env files safely
✅ How to load secrets in Python with python-dotenv
✅ How to export variables in .bashrc for terminal workflows
✅ How to update .gitignore to NEVER commit secrets accidentally
✅ Best practices: .env.example templates, secret rotation, dev vs prod values
💙 Support This Course: This course is 100% free and open-source. If it helps you, consider becoming a GitHub Sponsor. Your support funds server costs, domain renewals, and more free content: https://github.com/sponsors/S-V-J
Phase 0: Course Introduction
| Video | Topic | Docs | Video Link |
|-------|-------|------|------------|
| 0.0 | Course Intro + Vision + Roadmap | `docs/phase-00/00-introduction.md` | [🟢 Watch Now]( • Zero to Hero: Full Stack + VoIP + AI Engin... ) |
Phase 1: Environment & Foundations
| Video | Topic | Docs | Video Link |
|-------|-------|------|------------|
| 1.1 | WSL2 + Ubuntu 24.04 + VS Code Setup | `docs/phase-01/01-wsl-vscode-setup.md` | [🟢 Watch Now]( • WSL2 + Ubuntu 24.04 Setup for Developers (... ) |
| 1.2 | Git + SSH + GitHub Repository Setup | `docs/phase-01/02-git-github-setup.md` | [🟢 Watch Now]( • Git & GitHub Setup for Beginners 2026 | Co... ) |
| 1.3 | Development Tools: Docker + Python + Node.js + C/C++ | `docs/phase-01/03-dev-tools-setup.md` | [🟢 Watch Now]( • Install Docker + Python + Node.js + C++ in... ) |
| 1.4 | VS Code Setup for WSL: Extensions + Remote Debugging | `docs/phase-01/04-vscode-setup.md` | [🟢 Watch Now]( • VS Code + WSL Setup 2025: Remote Debugging... ) |
| 1.5 | Git Like a Pro: Pre-commit Hooks + .gitignore | `docs/phase-01/05-precommit-gitignore.md` | [🟢 Watch Now]( • Git Pre-commit Hooks Tutorial 2025: Auto-f... ) |
| 1.6 | Environment Variables 101: .env + bashrc + Secrets | `docs/phase-01/06-env-vars-secrets.md` | [🟢 Watch Now]( • Environment Variables Tutorial 2025: .env ... ) |
| 1.7 | Docker Compose: Run App + PostgreSQL + Redis in 1 Command | `docs/phase-01/07-docker-compose.md` | [🟢 Watch Now]( • Docker Compose Tutorial 2025: Run App + Po... ) |
| 1.8 | Write docker-compose.yml from Scratch | `docs/phase-01/08-write-docker-compose.md` | [🟢 Watch Now]( • Write docker-compose.yml from Scratch 2025... ) |
📋 Course Status: In Progress
This course is currently being built. New episodes drop weekly.
Star the repo and join Discord to get notified when Episode 7 releases.
💡 What You'll Learn in This Course:
• WSL2 Ubuntu + VS Code professional workflow
• Linux, Bash, C, C++, Python, Algorithms
• Full Stack Development (React, FastAPI, PostgreSQL, Docker)
• AI/ML Integration (PyTorch, LangChain, LLMs)
• Enterprise VoIP with Asterisk + Kamailio
• Full-Stack Cybersecurity (OWASP, JWT, SRTP, pentesting)
• 10 production-ready projects with CI/CD, monitoring, deployment
⚠️ DISCLAIMER:
Educational Purpose Only: Content is for educational purposes only. Not professional advice, employment guarantee, or financial recommendation.
Earnings Disclaimer: Income figures reflect 2024-2025 market averages from BLS, LinkedIn, Upwork. Actual earnings depend on skill, effort, location, and market conditions. This course teaches engineering skills — not a get-rich-quick scheme. Results vary.
Use at Your Own Risk: Code and commands are provided "as is" without warranty. Test in safe environments before production. You are responsible for your systems and data.
Third-Party Tools: Course uses open-source tools (Linux, Asterisk, Kamailio, Docker). We are not affiliated with these projects. Review official documentation and licenses.
Security & Ethics: Techniques are for defensive security and ethical development only. Never access systems without permission. Unauthorized access is illegal.
© Copyright & License:
Code License: All source code is MIT licensed. Free to use, modify, distribute — even commercially — with attribution.
Video Content: Tutorials and explanations are (c) 2025 Siddhant Kumar / heroStackAcademy. All rights reserved. Share links, but do not re-upload or redistribute video content without permission.
Attribution: If you reuse code or concepts, please credit: "Based on Zero to Hero: Full Stack + VoIP + AI Engineer by Siddhant Kumar (https://github.com/S-V-J/zero2hero)"
#EnvironmentVariables #Python #Dotenv #Bash #Security #DevOps #Programming #CodingTutorial #ZeroToHero #SiddhantKumar #heroStackAcademy
Tags:
environment variables tutorial, python dotenv, bashrc export, gitignore secrets, api key security, configuration management, zero to hero course, siddhant kumar, herostackacademy, devops best practices, secure coding, credential management
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