Computer Science

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TypeScript Quick Start

For experienced developers — quickly master TypeScript's type system, async programming, IO/network/database operations, and common toolchains

Type System Node.js Full-Stack

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PHP Quick Start

For experienced developers — based on PHP 8.4, quickly master web backend development, database operations, and common toolchains

PHP 8.4 PDO/MySQL Web Dev

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Java Quick Start

For experienced developers — based on Java 21 LTS, quickly master backend development, database operations, and Maven build toolchain

Java 21 JDBC/MySQL Enterprise

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SQL Quick Tutorial

For experienced developers — based on MySQL 8, quickly master data queries, table design, index optimization and transaction management

MySQL 8 JOIN/Aggregation Index Optimization

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Next.js Quick Start

For developers with React experience — based on Next.js 15, quickly master App Router, SSR/SSG, API Routes, and full-stack development practices

App Router SSR/SSG Full-Stack

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Go Quick Start

For experienced developers — based on Go 1.24, quickly master concurrency, network development, database operations, and common toolchains

Concurrency net/http Backend Dev

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Ruby Quick Start

For experienced developers — based on Ruby 3.3, quickly master object-oriented programming, database operations, and common toolchains

Ruby 3.3 ActiveRecord Web Dev

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Python Quick Tutorial

For experienced developers — Python 3.12+, venv, syntax & OOP, databases, networking, files, and pytest/ruff tooling

venv SQLite pytest

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Programming Concepts Wiki

Short notes that explain commonly confused development concepts across terminals, protocols, and toolchains

Terminal Protocols Concepts

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Dev Log

Development pitfalls, build notes, and hands-on experience sharing

Electron macOS Build & Deploy

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System How-To Guides

Practical notes on screenshot shortcuts, macOS screen recording, screen recording app choices, OBS alternatives, and system workflows

Mac recording Screen apps OBS alternative

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Software Tools

Practical answers for mac clipboard history, how to see clipboard history, view clipboard history, and productivity app choices

Clipboard history Mac apps Productivity

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Software Tools

Practical guides for media player choices, best video player workflows, free video player apps, mp4 player, mp3 player, IINA, and VLC

Media Player VLC IINA

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