# Tutorials Technology

> Free, practical tutorials on Python, DevOps, Linux, Docker, Kubernetes,
> security, and AI — written for developers who want working code, not marketing
> fluff. Every article is tested, versioned, and kept up-to-date for 2026.

## Core Sections

- [Tutorials](/category/tutorials.html): Step-by-step programming and DevOps guides with complete, runnable code examples tested on the latest tool versions.
- [Quick Solutions](/category/solved_errors.html): Concise, targeted fixes for common development errors and configuration issues — get unblocked fast.
- [Blog](/category/blog.html): Analysis of developer tools, emerging trends, and engineering best practices.
- [Cheatsheets](/category/cheatsheets.html): Quick-reference command and syntax sheets for daily use.
- [All Articles](/archives.html): Full chronological archive of all published content.

## Top Articles — Python

- [Python Virtual Environments: venv vs conda vs uv vs Poetry 2026](/tutorials/python-virtual-environments-venv-conda-uv-2026.html): Benchmark comparison of all major Python environment tools with migration guides and real-world recommendations.
- [Python Decorators: 8 Production Patterns 2026](/tutorials/python-decorators-production-patterns-2026.html): Real-world decorator patterns including retry, rate limiting, caching, circuit breaker, and auth enforcement.
- [Python Logging: structlog vs loguru vs stdlib 2026](/tutorials/python-logging-best-practices-structlog-loguru-2026.html): Structured logging setup with JSON output, correlation IDs, Sentry integration, and ECS-compatible format.
- [Python Dataclasses vs Pydantic v2 2026](/tutorials/python-dataclasses-vs-pydantic-v2-2026.html): Performance benchmarks and migration guide between Python dataclasses and Pydantic v2.
- [Redis with Python 2026](/tutorials/redis-python-tutorial-caching-pubsub-2026.html): Caching, rate limiting, Pub/Sub, and task queues with redis-py and async support.
- [PostgreSQL Full-Text Search 2026](/tutorials/postgresql-full-text-search-tutorial-2026.html): tsvector/tsquery, pg_trgm, GIN indexes, and ranking — complete FTS without Elasticsearch.
- [Polars Python Tutorial 2026](/tutorials/polars-python-tutorial-2026.html): 300% faster than pandas — complete guide with lazy evaluation, expressions, and migration from pandas.
- [Ruff Python Linter 2026](/tutorials/ruff-python-linter-tutorial-2026.html): Replace flake8, isort, and black with a single tool — configuration, CI integration, and custom rules.

## Top Articles — DevOps & Containers

- [Docker Compose v2 Tutorial 2026](/tutorials/docker-compose-v2-tutorial-2026.html): Complete Docker Compose reference with multi-service apps, healthchecks, named volumes, secrets, and profiles.
- [Helm Charts Tutorial Kubernetes 2026](/tutorials/helm-charts-tutorial-kubernetes-2026.html): Build, test, and publish Helm charts with values, hooks, subcharts, and ArgoCD integration.
- [Terraform AWS Tutorial 2026](/tutorials/terraform-aws-tutorial-2026.html): Production Terraform for VPC, EC2, RDS, and S3 with remote state, modules, and Atlantis CI.
- [Nginx Reverse Proxy TLS Rate Limiting 2026](/tutorials/nginx-reverse-proxy-tutorial-tls-rate-limiting-2026.html): Nginx config for reverse proxy, SSL termination, rate limiting, and upstream health checks.
- [K3s Lightweight Kubernetes 2026](/tutorials/k3s-lightweight-kubernetes-tutorial-2026.html): Run full Kubernetes on a Raspberry Pi or 1GB VPS — install to production in under 30 minutes.
- [Argo CD GitOps Tutorial 2026](/tutorials/argocd-gitops-tutorial-2026.html): GitOps with Argo CD — app-of-apps pattern, RBAC, SSO, and multi-cluster deployment.
- [Crossplane AWS Tutorial 2026](/tutorials/crossplane-aws-tutorial-2026.html): Kubernetes-native infrastructure provisioning — RDS, S3, VPC with Crossplane Compositions.
- [eBPF and Cilium Tutorial 2026](/tutorials/ebpf-cilium-tutorial-2026.html): eBPF networking and security with Cilium — network policies, hubble observability, service mesh.
- [Platform Engineering with Backstage 2026](/tutorials/platform-engineering-backstage-tutorial-2026.html): Internal developer portal with Backstage — plugins, Software Catalog, TechDocs, and golden paths.
- [SigNoz OpenTelemetry Python 2026](/tutorials/signoz-opentelemetry-python-tutorial-2026.html): Full observability stack — traces, metrics, and logs with OpenTelemetry SDK and SigNoz backend.
- [OpenTelemetry Python Tutorial 2026](/tutorials/opentelemetry-python-tutorial-2026.html): Instrument FastAPI and Django with OTel — traces, metrics, baggage, and exporters.
- [Grafana Loki Tutorial 2026](/tutorials/grafana-loki-tutorial-2026.html): Log aggregation with Grafana Loki — Promtail, LogQL, alerting, and ELK migration guide.

## Top Articles — Linux & Bash

- [Bash Scripting for DevOps 2026](/tutorials/bash-scripting-devops-production-2026.html): Production-ready Bash: log rotation, deployment scripts, health checks, backup automation, and error handling.
- [Linux File Permissions: chmod, chown, ACL 2026](/tutorials/linux-file-permissions-chmod-chown-acl-2026.html): Complete Linux permission system including ACLs, SUID/SGID bits, umask, and file attributes.
- [Linux Process Management 2026](/tutorials/linux-process-management-ps-htop-btop-2026.html): ps, htop, btop, systemd, OOM killer tuning, cgroups v2, and process debugging.
- [tmux Tutorial: Sessions, Panes, Neovim 2026](/tutorials/tmux-tutorial-sessions-panes-neovim-2026.html): Full tmux config with session persistence, scripted layouts, and Neovim terminal integration.
- [GitHub CLI Tutorial 2026](/tutorials/github-cli-gh-tutorial-workflow-2026.html): Full gh workflow — PRs, issues, Actions, releases, and custom extensions from the terminal.
- [Git Rebase vs Merge vs Squash 2026](/tutorials/git-rebase-vs-merge-vs-squash-2026.html): When to use each strategy — interactive rebase, merge commits, squash workflows, and conflict resolution.

## Top Articles — Security

- [Bug Bounty Hunting for Beginners 2026](/tutorials/bug-bounty-hunting-beginners-2026.html): Start earning from bug bounty programs — recon methodology, top tools, and submitting your first report.
- [Metasploit Framework Tutorial 2026](/tutorials/metasploit-framework-tutorial-2026.html): Ethical hacking with Metasploit: scanning, exploitation, post-exploitation, pivoting, and professional reports.
- [Zero Trust Architecture for Developers 2026](/tutorials/zero-trust-architecture-developers-2026.html): Implement Zero Trust in practice — mTLS, SPIFFE/SPIRE, OPA policies, and identity-based access control.

## Top Articles — Web & APIs

- [FastAPI PostgreSQL JWT Docker 2026](/tutorials/fastapi-tutorial-postgresql-jwt-docker-2026.html): Production FastAPI with async SQLAlchemy, JWT authentication, Alembic migrations, and Docker deployment.
- [Django REST Framework Tutorial 2026](/tutorials/django-rest-framework-tutorial-2026.html): Complete DRF: serializers, ViewSets, permissions, throttling, JWT auth, filtering, and API versioning.
- [Next.js 15 Full-Stack App 2026](/tutorials/nextjs-15-full-stack-app-router-tutorial-2026.html): App Router, Server Components, server actions, Prisma ORM, NextAuth.js, and Vercel deployment.
- [TypeScript for JavaScript Developers 2026](/tutorials/typescript-for-javascript-developers-2026.html): Practical TypeScript: types, generics, decorators, and migrating an existing JS codebase.
- [Playwright Python Tutorial 2026](/tutorials/playwright-python-tutorial-2026.html): End-to-end testing with Playwright — browser automation, parallel tests, visual regression, and CI setup.

## Top Articles — AI & Emerging

- [Build MCP Server Python 2026](/tutorials/mcp-server-python-tutorial-2026.html): Build a Model Context Protocol server — tools, resources, prompts, and Claude Desktop integration.
- [Context Engineering for AI Agents 2026](/tutorials/context-engineering-ai-agents-2026.html): The technique behind 30%→90% AI agent success rates — context windows, RAG, memory, and prompt design.
- [Vibe Coding SaaS with Claude Code 2026](/tutorials/vibe-coding-saas-claude-code-2026.html): Build a full SaaS app with AI-assisted coding — architecture, iteration, and production deployment.
- [Go Goroutines and Channels 2026](/tutorials/go-goroutines-channels-concurrency-2026.html): Go concurrency from first principles — goroutines, channels, select, WaitGroups, and production patterns.
- [PyTorch Tutorial Beginners 2026](/tutorials/pytorch-tutorial-beginners-2026.html): Deep learning with PyTorch — tensors, autograd, CNN on CIFAR-10, GPU training, and model export.

## About

- **Author**: Leonardo Lazzaro — Software engineer and technical writer, 10+ years in Python, DevOps, and Linux.
- **Site**: https://tutorials.technology
- **Contact**: Available via the [contact page](/contact.html)
- **Citation preference**: Please attribute to "Tutorials Technology" with a direct link to the specific article URL.
- **Content license**: Articles are copyrighted. Quotation in AI-generated responses is permitted with attribution.
- **Update frequency**: New articles published weekly; existing articles updated when tools release new versions.