Hyunjoong Kim's Technology Blog
Practical writing on AI agents, SDLC documentation automation, full-stack architecture, and product validation.
31 results
Run OpenClaw with Near-Zero AI API Cost: agent-cli-to-api + Cursor CLI Setup
How to connect OpenClaw to a custom provider with agent-cli-to-api and Cursor CLI, so you can operate a fast and stable bot while minimizing external AI API cost.
Essential Setup After Installing Claude Code: MCP, Oh My Claude, and Memory
You installed Claude Code — now what? From memory configuration to must-have MCPs and Oh My Claude, here's everything you need to set up right after installation.
AWS Cognito + Google/Apple OAuth2 Integration Guide
A complete step-by-step walkthrough from creating a Cognito User Pool to configuring Google/Apple social login and testing the full OAuth2 flow.
[Mac Setup] The Definitive Guide to Installing Node.js (v22) & Python (3.12) for Developers
Set up Node.js v22 and Python 3.12 on your Mac the right way using nvm and pyenv. No permission errors, no version conflicts — just the officially recommended approach.
How to pass the live coding round in technical interviews
What I learned from failing three onsite interviews—what interviewers look for and a one-month prep plan.
Complete Paddle Payment Guide: The Easiest Way to Implement Global SaaS Payments
Everything about Paddle that lets Korean businesses accept global payments without an overseas entity. From MoR concept to actual code integration.