Tutorials
Step-by-step technical guides on Docker, Linux, Python, Go, and more.
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K3s Tutorial 2026: Run Kubernetes on a Raspberry Pi or 1GB VPS
K3s is the lightweight Kubernetes distribution with 200% YoY growth. Install K3s on a Raspberry Pi or 1GB VPS, deploy apps, configure persistent storage, set up Traefik ingress, and add worker nodes.
Building a Local LLM Machine in 2026: Complete Hardware Guide
Complete 2026 guide to building a PC for running local LLMs. GPU VRAM requirements, RAM, storage, three full build examples from $800 to $6000, and Ollama/llama.cpp setup.
Build an MCP Server in Python: Complete Tutorial 2026
Learn to build a Model Context Protocol (MCP) server in Python from scratch. Expose tools, resources, and prompts to Claude and other LLMs with the official MCP SDK.
Next.js 15 Full-Stack App 2026: App Router, Prisma, NextAuth, and Vercel
Build a production full-stack app with Next.js 15 in 2026. Use the App Router, React Server Components, server actions, Prisma ORM, NextAuth.js authentication, and deploy to Vercel.
Platform Engineering with Backstage 2026: Build Your Internal Developer Portal
Build an Internal Developer Portal with Backstage in 2026. Set up the Software Catalog, TechDocs, scaffolder templates, and plugins to improve developer experience — Gartner says 80% of engineering orgs will have one by 2027.
Ruff Python Linter 2026: Replace flake8, isort, and black with One Tool
Ruff is the fastest Python linter in 2026 — 10-100x faster than flake8. Learn to install, configure, and integrate Ruff into your CI/CD pipeline replacing flake8, isort, black, and pydocstyle.
Vibe Coding a SaaS with Claude Code 2026: From Idea to Production
Learn vibe coding in 2026 — AI-assisted development where 46% of code is AI-generated. Build a real SaaS product with Claude Code: architecture decisions, iteration workflow, quality control, and production deployment.
Bash Scripting for DevOps 2026: 5 Production Scripts with Error Handling and Tests
Bash scripting for DevOps engineers: 5 production-ready scripts for log rotation, HTTP health checks, PostgreSQL backup, Docker deploy, and secret rotation — with error handling, ShellCheck, and bats tests.
Django REST Framework Tutorial 2026: JWT Auth, Permissions, Filtering, and Tests
Django REST Framework tutorial 2026: build a production API with JWT authentication (SimpleJWT), object-level permissions, DjangoFilterBackend filtering, pagination, and pytest-django tests.
Docker Compose v2 Tutorial 2026: From Local Dev to Production with Profiles, Health Checks, and Secrets
Docker Compose v2 tutorial 2026: compose.yaml structure, health checks, profiles for dev/staging/prod, secrets management, named volumes, depends_on with conditions, and production patterns.