Hyoseo Lee
Home About Projects Blog Thinking
dev-log —

Archive/dev-log

Chronological updates and behind-the-scenes of current development projects.

lesson from WW-extension implementation

Topic Product Launch & AI Development
Area Solopreneurship

A reflective dev-log on successfully deploying a multi-component service using modern cloud infrastructure and AI code generation, highlighting the challenges of managing LLM context efficiency and navigating the psychological shift from developer to entrepreneur when pricing a product.

Waterloo Works Extension Project

Topic SaaS Architecture Pivot
Area Full-Stack Development

The technical and strategic journey of transforming a localized, BYOK WaterlooWorks job-matching Chrome extension into a production-grade, monetized SaaS application optimized for AI agent development workflows.

I'm putting more effort in WW Extension project

Topic Product Monetization
Area Software Engineering

Transitioning a student utility tool into a monetized product by introducing a credit system, handling sensitive data liabilities, and moving from 'vibe coding' to a structured ADR architecture for better AI agent alignment.

more about WW extension project

Topic AI-Assisted Development
Area Side Projects

A reflection on building a Waterlooworks Chrome extension in two days using Claude Code, highlighting how 'harness engineering' provided full control over AI agents and drastically improved the development experience.

my new project: waterloo works extension

Topic ww-extension
Area side-projects

Introducing ww-extension, a new Chrome extension that uses AI to automate WaterlooWorks job triage, and a reflection on shutting down the unfinished Macro-dashboard project to focus on this new tool.

Project-Macro dashboard - Implementing the Idea

Topic AI-Assisted Development
Area Software Engineering

Reflecting on the successful deployment of the macro dashboard, the specific phase-based workflow used to guide Claude Code through the implementation, and the upcoming challenges of operations and monetization.

First time using GenAI api

Topic Automating PDF Data Extraction with GenAI API
Area side-project

A first experience using GenAI API to extract questions from TOPIK exam PDFs. Built an extraction program with an LLM coding agent and automated the process with a bash script.

Example Post: Testing the UI

Topic UI Testing
Area Web Development

A comprehensive test of the blog's UI, showcasing various Markdown features including tables, code blocks, and typography.