disk library — opusjake_os BLOG
// OPUSJAKE · WRITING

The blog, on disk.

Practical, no-slop articles on building with AI for operators and founders. Pick a shelf, pull a disk. Free, no email, no catch.

How to Get ChatGPT in 2026: Four Doors In, and Which One to Pick NEWagentsSEP 26 267 MIN How to Use OpenAI: Pick the Plan, Set the Controls, Then Build a Project agentsSEP 23 268 MIN How to Use Generative AI: Spec, Three Passes, Then Stop agentsSEP 22 268 MIN How to Use AI in Daily Life: What Actually Survives a Real Week agentsSEP 19 268 MIN How Are Companies Using AI? What the 2026 Data Actually Shows agentsSEP 18 266 MIN How Is AI Used in Education? What the Evidence Actually Shows agentsSEP 17 269 MIN How to Use Hugging Face: The Hub, Spaces, and Inference, Without Drowning agentsSEP 15 268 MIN How Is AI Different From Machine Learning? The Builder's Decision Rule retrievalSEP 12 267 MIN How to Use AI in Business: The Implementation Sequence agentsSEP 11 268 MIN LLM Parameters Explained: Temperature, Top-P, and the Dials That Still Work agentsSEP 10 267 MIN How to Use Google AI: Gemini, Workspace, and AI Studio agentsSEP 9 267 MIN How to Measure AI ROI (Four Numbers and One Break-Even) productionSEP 9 268 MIN How Is Artificial Intelligence Made? The Five Stages Behind a Model agentsSEP 9 267 MIN How to Use AI: The Four Modes, the Cost Math, and the Gate agentsSEP 8 268 MIN AI Agent Frameworks: When to Use One and When to Skip It agentsSEP 7 267 MIN Introduction to AI for Builders: 10 Concepts That Change What You Ship agentsSEP 4 268 MIN AI Code Review: What to Automate and What Stays Human agentsSEP 3 267 MIN Artificial Intelligence Projects: 10 Builds Worth a Weekend in 2026 agentsSEP 1 267 MIN AI Browser Automation: What It Can Run Unattended (And What It Can't) agentsSEP 1 267 MIN Personal AI in 2026: Memory, Files, and the Privacy Line agentsSEP 1 268 MIN How to Build an AI Customer Support Agent (Resolution, Not Deflection) agentsSEP 1 267 MIN Responsible AI in 2026: The Controls a Small Team Can Actually Ship agentsAUG 28 267 MIN How to Get Cited by AI Search (Four Gates, In Order) agentsAUG 27 267 MIN Open Source AI in 2026: The Real Self-Hosting Break-Even productionAUG 26 268 MIN AI Programming in 2026: Specs, Loops, and Review Gates agentsAUG 25 268 MIN How to Connect an AI Agent to Your Database Without Handing It the Keys agentsAUG 24 268 MIN AI API in 2026: How to Pick One and Wire It Up Properly productionAUG 22 267 MIN The Best AI Chatbot in 2026: Pick by Job, Not by Benchmark agentsAUG 21 267 MIN How to Extract Data From PDFs With AI (Fields, Citations, and a Review Gate) promptsAUG 20 269 MIN AI Development in 2026: Evals First, Then Features productionAUG 19 268 MIN Generative AI in 2026: The Five Jobs It Does Well agentsAUG 18 268 MIN LLM as a Judge: How to Grade AI Output Without Fooling Yourself productionAUG 17 269 MIN The OpenAI API in 2026: First Call to Last Mile promptsAUG 15 268 MIN Conversational AI in 2026: Why Chat Is the Interface of Last Resort agentsAUG 14 268 MIN How to Deploy an AI Agent to Production (Jobs, Not Requests) agentsAUG 13 267 MIN AI in Finance: What to Automate, What to Gate, and What to Leave Alone agentsAUG 12 268 MIN AI in Business 2026: Where It Actually Shows Up on the P&L agentsAUG 11 267 MIN How to Build an AI Voice Agent (Latency, Turn-Taking, and Handoffs) agentsAUG 11 268 MIN AI Assistant in 2026: What It Can Own and What It Can't agentsAUG 11 267 MIN How to Handle LLM Rate Limits Without Making Them Worse productionAUG 10 267 MIN AI Automation in 2026: What Actually Works and What Burns Money agentsAUG 9 267 MIN Human in the Loop AI Agent: How to Add Approvals That Work agentsAUG 9 266 MIN AI Workflow vs AI Agent: How to Pick the Right One agentsAUG 3 267 MIN AI Agent Observability: How to Debug an Agent in Production agentsJUL 31 266 MIN What Are Embeddings? A Builder's Guide to Vector Search retrievalJUL 27 266 MIN How to Chunk Documents for RAG (Sizes, Overlap, and What Actually Works) retrievalJUL 23 268 MIN How to Build a Multi-Agent System (And When You Actually Need One) agentsJUL 21 267 MIN How to Prevent Prompt Injection in Your AI Agent productionJUL 16 268 MIN How to Design Tools for an AI Agent (So It Actually Uses Them) agentsJUL 15 267 MIN How to Reduce AI Hallucinations (7 Fixes That Actually Work) productionJUL 13 266 MIN How to Get Reliable Structured Output From an LLM (JSON, Plainly) promptsJUL 10 266 MIN How to Choose an AI Model: Match the Tier to the Job productionJUL 6 266 MIN How to Give Your AI Agent Memory (Working, Short-Term, Long-Term) agentsJUN 30 267 MIN How to Cut Your AI API Bill Without Hurting Quality productionJUN 29 266 MIN How to Test an AI Agent Before You Ship It (AI Evals, Plainly) agentsJUN 27 266 MIN RAG vs Fine-Tuning: How to Customize Your AI Without Wasting Money retrievalJUN 25 267 MIN What Is an MCP Server? A Builder's Guide to Connecting AI to Your Tools retrievalJUN 23 266 MIN Context Engineering: How to Feed an AI Agent the Right Information promptsJUN 19 266 MIN How to Write AI Prompts That Get Real Results promptsJUN 14 264 MIN How to Build an AI Agent That Ships Real Work agentsJUN 14 266 MIN
60 ITEMS · 4 SHELVES © OPUSJAKE // DISK LIBRARY V1