Blog
Development journey and technical blog from hafuture
GLM5 vs Claude: Who Codes Better?
Compare GLM5 and Claude in this detailed coding benchmark. Discover their language-specific performance, code quality, and real-world tradeoffs for developers.
What is Harness Engineering? The Art of Connection and Control
Explore the diverse concepts of Harness Engineering, from physical wiring harnesses to software test harnesses and the emerging field of AI Harness Engineering.
New Game: Sudoku Has Been Added!
Sharpen your logical thinking with our new Sudoku puzzle game. Choose from 3 difficulty levels, use note mode, and play directly in your browser.
Vibe Coding Showdown: Claude Code vs Google Antigravity — The Best AI Coding Tool in 2026
A head-to-head comparison of Claude Code and Google Antigravity. Which AI coding agent will maximize your development productivity in the vibe coding era? Complete analysis of features, pricing, and real-world experience.
New Feature: 15 Puzzle Game Added!
Introducing the classic 15 Puzzle game, now playable directly in your browser. More mini-games coming soon!
Claude Opus 4.6: New Era of AI Coding
In-depth analysis of Claude Opus 4.6's key features including 1 million token context window, AI agent teams, and enhanced coding capabilities, released by Anthropic on February 5, 2026.
Claude Code Worker: Installation to Advanced
Learn how to install and effectively use Claude Code Worker. A comprehensive guide covering terminal setup, authentication, and practical use cases.
OpenClaw: LLM Token Cost Efficiency Analysis
Analyze the token cost burden when using agent systems like OpenClaw and compare major LLM model prices to find the most economical alternative.
Jan 2026 Update: Spanish Support & New Tools
hafuture's promised January feature updates are complete. Introducing Spanish language support, compound interest calculator, comprehensive unit converter, dark mode UI improvements, and more.
Compound Interest Magic: Wealth Building Secret
Discover the power that Einstein called 'the eighth wonder of the world'! Explore the magic of compound interest and design your financial future with our free calculator.
Image Compression & SEO: 2026 Guide
Image compression is key to website speed and UX! Learn core strategies to boost SEO scores and improve LCP performance.
Unit Converter Calculator & Dark Mode UI Improvements
Introducing the new unit converter calculator supporting 12 unit types and comprehensive dark mode UI improvements across the site.
Jan 2026 Preview: Spanish, Unit Converter & More
Get a sneak peek at three exciting new features coming to Hafuture: Spanish language support, Unit Converter, and Compound Interest Calculator!
Hardcoding vs next-intl: Multilingual SEO Guide
Learn how to build SEO-optimized multilingual websites using next-intl library instead of hardcoding metadata in Next.js App Router.
Why Next.js Over React: Modern Web Standard
Exploring the reasons behind switching from a pure React library to a full-featured framework like Next.js, focusing on SEO, productivity, and performance.
SEO Improvements and Bug Fixes Update
Sharing updates on link text improvements for web accessibility, Canonical URL configuration for SEO, and bug fixes.
HAFuture Evolution: Spell Checker & Precision
Introducing our powerful spell checker for Korean, English, and Japanese, plus enhanced precision for the Loan Calculator.
Next.js I18n: Fixing Layout & Menu Issues
A deep dive into fixing a common issue where header and footer translations get stuck, and how we resolved it using NextIntlClientProvider.
Ultimate Guide to Text Tools: Productivity Boost
Discover essential text tools for writing and content creation. From AI-powered assistants to traditional editors, explore the best tools available.
Blog Update: Multilingual Support & New UX
Introducing new features added to the hafuture blog, including full multilingual support and an intuitive language switcher.
Building a Tech Blog with Next.js and MDX
How to build a tech blog using Next.js 16 App Router and MDX.
Creating a Blog with Vibe Coding
Learn how to quickly and easily build an MDX-based blog.
Hello World!
This is the first post on the hafuture blog.