Developer Guides

Concise, visual explanations of complex engineering concepts. Learn faster with practical examples.

Learn by Doing

Each guide breaks down a complex topic into digestible chunks with code examples, diagrams, and practical use cases you can apply immediately.

Jump Servers: What, Why and How

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Guide to Let's Encrypt SSL Setup

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Single Command Database Setup

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Consistency Patterns

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Session Based Authentication

HTTP Basic Authentication

Basics of Authentication

Async and Defer Script Loading

What are Web Vitals?

SLIs, SLOs and SLAs

What is CI and CD?

SSO — Single Sign On

OAuth — Open Authorization

JWT Authentication

Token Based Authentication

Session Based Authentication

Basic Authentication

Character Encodings

Unfamiliar Codebase

DHCP in One Picture

SSL vs TLS vs SSH

Asymptotic Notation

Big-O Notation

Random Numbers: Are they?

How does the internet work?

Scaling Databases

Levels of Seniority

Design Patterns for Humans

Journey to HTTP/2

HTTP Caching

Brief History of JavaScript

Proxy Servers

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