Visual explanations and guides focused on system design, distributed systems, databases, networking, scalability, and the architecture behind modern software systems.

A collection of system design learning material and interview preparation resources covering the architecture of large-scale software systems.

An introductory Ubuntu tutorial covering essential command-line concepts, navigation, file management, package installation, and other fundamental terminal operations.

Interactive Linux lessons covering the command line, permissions, processes, networking, package management, and other fundamentals through guided learning and practical exercises.

A guide to system design concepts covering scalable architectures, distributed systems, databases, networking, reliability, and large-scale software design.

An open-source guide covering system design concepts, distributed systems, scalability, databases, networking, and architectures for large-scale software.

A comprehensive introduction to working with Linux through the command line, progressing from basic shell usage to scripting, file management, processes, networking, and system administration.