August, 2025

Writing an OS Kernel from Scratch – Part 21: Implementing a Terminal — Make Your Shell Truly Interactive! “Your shell can run commands, but how does the user edit commands, handle backspace, or respond to Ctrl+C? Today, we implement a full terminal (Terminal) supporting line editing, signals, and job control!” In the previous post, we... » read more

Teach an AI Beginner to Define Their Own Model and Implement Image Classification in 30 Minutes Have you ever wondered: “What does an AI model actually look like? Can I write one myself?” “Online tutorials are too complex, all code, totally incomprehensible” “I want to learn AI but don’t know where to start” Don’t worry!... » read more

Writing an OS Kernel from Scratch 201: Storage System – VFS: Designing a Unified File Abstraction Layer “In a custom OS, how do you make open/read/write work with both ext2 and procfs? This article designs a VFS abstraction layer from scratch, building four core objects, implementing path resolution and caching, providing a unified interface for... » read more