Tutorials
Step-by-step technical guides on Docker, Linux, Python, Go, and more.
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CrewAI Tutorial 2026: Build Multi-Agent AI Systems in Python
CrewAI tutorial 2026: build multi-agent AI systems in Python. Create agents with roles, assign tasks, use tools, and run sequential or hierarchical crews with local Ollama models.
Docker vs Podman 2026: Which One to Use and Why (Practical Guide)
Docker vs Podman in 2026: architecture differences, security, compatibility, rootless containers, and which one to use for your use case. Practical comparison.
Embeddings Explained: What They Are and How to Use Them with Python and Ollama (2026)
Learn what embeddings are and how to use them with Python and Ollama for free. Generate embeddings with nomic-embed-text, compute cosine similarity, build semantic search, and store in pgvector.
FastAPI Tutorial 2026: Build a REST API with PostgreSQL, Auth, and Async
FastAPI tutorial 2026: build a production REST API with PostgreSQL, JWT authentication, and async endpoints. Complete guide with Pydantic models, testing, and Uvicorn deployment.
Go Concurrency: Goroutines, Channels and sync.WaitGroup with Real Examples (2026)
Master Go concurrency: goroutines, channels, sync.WaitGroup, Mutex, select, and worker pools with real-world examples. Avoid common mistakes.
Go REST API with Gin: From Zero to Production (2026)
Build a production-ready REST API in Go using the Gin framework. Includes routing, middleware, JSON responses, PostgreSQL integration, and Docker deployment.
Kali Linux for Beginners: Installation, Initial Setup and First Steps (2026)
Kali Linux for beginners: how to install Kali Linux in 2026, initial configuration, essential tools, update system, and start with ethical hacking basics.
LangGraph Tutorial 2026: Build Stateful AI Agents with Python
LangGraph tutorial 2026: build stateful AI agents in Python using StateGraph, nodes, edges, and checkpointers. Full ReAct agent example with tool calling and human-in-the-loop.
LiteLLM Tutorial 2026: Use OpenAI, Claude, and Ollama with One Python API
LiteLLM tutorial 2026: call OpenAI, Claude, Gemini, and Ollama with one unified Python API. Setup proxy server, fallbacks, cost tracking, and load balancing.
n8n + AI on Linux: Self-Hosted Workflow Automation with LLMs (2026)
Run n8n on Linux and automate workflows with AI and local LLMs. Install n8n via Docker, set up AI Agent nodes with Ollama, build real automations, and run as a systemd service. Free 2026 guide.