Welcome to Learn Harness Engineering | Learn Harness Engineering

A project-based course on designing the environments, state, verification, and control systems that make Codex and Claude Code reliable.

How to Upgrade to an SSD: A Step-by-Step Installation & Data Migration Guide

Upgrading your PC to a Solid State Drive (SSD) requires identifying your motherboard's compatible connection type (SATA or M.2), migrating your existing data

The Linux Kernel Startup | Internals for Interns

Have you ever wondered what really happens between the moment you press the power button and the moment your login screen shows up? That gap—usually some seconds—hides one of the most intricate initialization sequences in computing. Today I want to walk you through it. This is the first article in a series where I’ll try to make sense of the Linux kernel internals together with you. We’ll talk about how Linux boots, how it manages processes and memory, how it deals with hardware, and so on. If you’ve ever been curious about what’s happening under the hood, you’re in the right place.

Myths about /dev/urandom

Learning Software Architecture

In reply to an email asking about learning software design skills as a researcher physicist:

Home | NHCarrigan Academy

Guides, resources, and things worth knowing - from Naomi Carrigan.

Exposing Floating Point – Bartosz Ciechanowski

In depth explanation of floating point format.