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A Guide to Using pgvector on PostgreSQL: Storing Embeddings and Semantic Search in Relational Databases

By IT From Zero November 2, 2026

Leverage your existing PostgreSQL database with pgvector to store embeddings and perform low-latency semantic search without maintaining a costly dedicated vector database.

MetaGPT with Python Guide: Automate Software Development with Multi-Agent Systems

By IT From Zero October 24, 2026

A comprehensive guide to using MetaGPT with Python to automate software development via multi-agent systems. Optimize API costs, implement SOPs, and build MVPs faster.

Flowise: Install and Build Chatbots and RAG Pipelines with a No-Code Drag-and-Drop Interface

By IT From Zero July 18, 2026

Flowise is an open-source tool that lets you build chatbots, RAG pipelines, and AI workflows through a drag-and-drop interface — no coding required. This guide covers installation via Docker/npm and walks through building a chatbot with Ollama and a RAG pipeline for PDF document Q&A, step by step.

Mastering MergeKit: The Ultimate Trick to ‘Mix’ LLM Models Without Heavy GPUs

By IT From Zero July 18, 2026

A detailed guide on using MergeKit to merge LLM models on Linux. Save on GPU costs and optimize AI performance using SLERP, TIES, and DARE algorithms.

How to Install and Use OpenHands: The AI Agent for Automated Coding on Linux

By IT From Zero July 17, 2026

A step-by-step guide to installing and using OpenHands (OpenDevin) on Linux to automate code writing, bug fixing, and programming task execution via Docker and LLM.

LlamaIndex + Ollama: Building a Fully Offline Internal Document Q&A System

By IT From Zero July 3, 2026

LlamaIndex combined with Ollama lets you build a Q&A system over PDFs, Word files, and internal websites without sending any data to the cloud. This article compares different approaches, breaks down when the offline solution makes sense, and walks through deployment step by step from installation to production.

artificial intelligence

A Guide to Using pgvector on PostgreSQL: Storing Embeddings and Semantic Search in Relational Databases

MetaGPT with Python Guide: Automate Software Development with Multi-Agent Systems

Flowise: Install and Build Chatbots and RAG Pipelines with a No-Code Drag-and-Drop Interface

Mastering MergeKit: The Ultimate Trick to ‘Mix’ LLM Models Without Heavy GPUs

How to Install and Use OpenHands: The AI Agent for Automated Coding on Linux

LlamaIndex + Ollama: Building a Fully Offline Internal Document Q&A System

Docling: Breaking the PDF ‘Curse’ for RAG Systems – From Messy Data to Clean Markdown

PydanticAI: The Secret to Building Robust, Type-Safe AI Agents

Build Your Own Text-to-SQL System with Vanna.ai: Let AI Handle 80% of Mundane Reporting Tasks

Mastering NeMo Guardrails: Controlling Content and Eliminating LLM Hallucinations