Tutorials
Step-by-step technical guides on Docker, Linux, Python, Go, and more.
Page 10 of 37
Ollama on Linux: Run Local LLMs, Manage Models and Use the API (2026)
Complete Ollama guide for Linux: install, run LLMs locally, manage models, use the REST API, Python integration, and GPU acceleration with NVIDIA or AMD.
Ollama + Open WebUI on Linux: Run a Local ChatGPT Server (2026)
Set up Ollama and Open WebUI on Linux for a free self-hosted ChatGPT alternative. Run llama3.2, mistral, and qwen2.5 locally with GPU support and nginx reverse proxy.
OpenAI Function Calling in Python: Complete Guide 2026 (Tools, Parallel Calls, Streaming)
Learn OpenAI function calling in Python 2026. Define tools, handle tool_calls, run parallel function calls, stream with tools, and build a real assistant with weather and calendar tools.
PostgreSQL Backup and Restore: pg_dump, pg_basebackup and Point-in-Time Recovery (2026)
Complete PostgreSQL backup and restore guide: pg_dump for logical backups, pg_basebackup for physical backups, WAL archiving, and Point-in-Time Recovery (PITR) in 2026.
PydanticAI Tutorial 2026: Build Type-Safe AI Agents in Python
PydanticAI tutorial 2026: build type-safe AI agents in Python with FastAPI-style dependency injection. Covers tools, structured results, testing without LLM calls, and local Ollama integration.
RAG with Python, LangChain and PostgreSQL pgvector as Vector Store (2026)
Build a RAG pipeline with Python, LangChain, and PostgreSQL pgvector. Load documents, create embeddings, store in pgvector, and query with an LLM. Complete working example.
Build a RAG System from Scratch with Python and pgvector (No LangChain, 2026)
Build a RAG chatbot from scratch using Python and PostgreSQL pgvector — no LangChain needed. Covers chunking, embeddings with Ollama, vector search, and a working chat-with-docs example.
Structured Output from LLMs with Python: Reliable JSON Using Pydantic and Instructor (2026)
Get reliable JSON from LLMs using Python. Learn to use the instructor library with Pydantic to extract structured data from OpenAI, Claude, and local Ollama models. 2026 guide.
Whisper AI: Local Speech-to-Text with Python — No API Key Needed (2026)
Transcribe audio locally with OpenAI Whisper and Python — no API key required. Covers faster-whisper, timestamps, batch processing, ffmpeg pipeline, and SRT export. Free 2026 guide.
Python: Check if File or Directory Exists — os.path, pathlib, try/except (2026)
How to check if a file exists in Python using os.path.exists(), pathlib Path.exists(), and try/except. Complete guide with examples for files and directories.