
Book
OS Fundamentals
inside the operating system — how processes are created, how memory is managed, how the scheduler decides what runs next. the layer between your code and the hardware, explored hands-on with real Linux tools.
Sign in with your Google or GitHub account to get started
how to build a CLI log filter from scratch using structs, dynamic memory, string parsing, and a Makefile — putting everything together
Time to do some coding. Whether you want to continue with Go or practice DSA, here's where you can get started.

inside the operating system — how processes are created, how memory is managed, how the scheduler decides what runs next. the layer between your code and the hardware, explored hands-on with real Linux tools.
Build an HTTP server from raw TCP sockets. No frameworks, no libraries - just you and the protocol specification. Understand exactly what happens when browsers talk to servers.
██████╗ ██████╗ ██████╗ ██╗███████╗ ██████╗████████╗██╗ ██╗ ██████╗ ██╗ ██╗████████╗██╗ ██╗ ██████╗ ██╗ ██╗███████╗███████╗ ██╔══██╗██╔══██╗██╔═══██╗ ██║██╔════╝██╔════╝╚══██╔══╝██║ ██║██╔════╝ ██║ ██║╚══██╔══╝██║ ██║██╔═══██╗██║ ██║██╔════╝██╔════╝ ██████╔╝██████╔╝██║ ██║ ██║█████╗ ██║ ██║ ██║ ██║██║ ███╗███████║ ██║ ███████║██║ ██║██║ ██║███████╗█████╗ ██╔═══╝ ██╔══██╗██║ ██║██ ██║██╔══╝ ██║ ██║ ██║ ██║██║ ██║██╔══██║ ██║ ██╔══██║██║ ██║██║ ██║╚════██║██╔══╝ ██║ ██║ ██║╚██████╔╝╚█████╔╝███████╗╚██████╗ ██║ ███████╗██║╚██████╔╝██║ ██║ ██║ ██║ ██║╚██████╔╝╚██████╔╝███████║███████╗ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ ╚════╝ ╚══════╝ ╚═════╝ ╚═╝ ╚══════╝╚═╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ ╚═════╝ ╚══════╝╚══════╝