Case & CodeA FIELD GUIDE TO AI
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A clear route into AI.

Start with an explanation, follow a practical workflow, or build something small. You can read any chapter without committing to the whole curriculum.

The 9 chapters

Expand a chapter to see its lessons
01

AI essentials

Understand what a model does, what it can see, and why a persuasive answer still needs support.

6 lessons
02

Using AI effectively

Write a useful brief, preserve meaning, distinguish evidence from inference, and resume work reliably.

5 lessons
03

AI in legal practice

Build source-linked chronologies, transcript work products, research tables, and drafting workflows.

5 lessons
04

Tools and choosing between them

Compare tools on complete tasks, design review tables, and turn dictation into usable work.

3 lessons
05

Agents, skills, and automation

Understand the components, design a first bounded agent, and make recurring work recoverable.

6 lessons
06

Documents and knowledge systems

Prepare source material, understand retrieval and RAG, and create reusable precedent and matter knowledge.

4 lessons
07

Local AI and building systems

Learn the hardware, run a model, write small utilities, connect an API, and preserve structured facts.

7 lessons
08

Reliability and oversight

Evaluate results, verify support, recognize prompt injection, and map the full data journey.

7 lessons
09

Local AI, in depth

Optional depth: run a model on hardware you control. Check memory, setup, data flows and results before using client files.

10 lessons
Chapter overview

Why run AI on your own machine, and what you give up

Keep client material on hardware you control, and understand the trade against frontier cloud models.

4 min reading · Expert

How a model actually runs on hardware

Weights, bits, the KV cache, reading versus writing, offloading, and mixture-of-experts, with the two formulas that predict fit and speed.

6 min reading · Expert

Every part of a computer, through the lens of local AI

What each component does, how much it matters for running models, and how to find out what is already in your machine.

5 min reading · Expert

Building a PC for local AI

Choose parts by budget, check they fit together, assemble step by step, and get through the first boot.

5 min reading · Expert

Devices other than a custom PC

Apple Silicon Macs, unified-memory mini PCs, dedicated AI boxes, and multi-GPU workstations, compared in one table.

3 min reading · Expert

Engines and front-ends: the software layers

What an inference engine does, what a front-end adds, and which combination to choose.

3 min reading · Expert

Choosing a model: families, sizes, formats, and licences

Pick an open-weight model for your memory, read its model card, and check its licence.

3 min reading · Expert

Setting it up: three tracks, easy and expert routes

Windows with NVIDIA, Windows with AMD, and Mac, each by app and by command line, and how to confirm the model is on the GPU.

5 min reading · Expert

Proving it works: offline, measured, and checked against the formula

An offline test anyone can follow, a benchmark, and a comparison between predicted and measured speed.

3 min reading · Expert

Keeping it current: engines, models, and hardware

Update the engine safely, swap models on evidence, and know when hardware is the real limit.

3 min reading · Expert

How to use the lessons

Each lesson explains one idea, shows it with a worked legal example, and ends with sources. Read a chapter in order, or open a single lesson when a question comes up. The technical chapter has additional setup instructions.

When you try any of this on your own work, start from public or fictional material.

Lessons, terms, practical guides and sources ESC