2024-09-16

Starting in February 2024, I began working as a freelance frontend engineer in the web industry, working four days a week. My working days are Monday, Tuesday, Thursday, and Friday. In this post, I reflect on these seven months and share my thoughts....

2024-09-15

In GPT-driven development, the ability to assess the accuracy of AI-generated outputs is essential. Rather than relying entirely on GPT, active involvement from developers is required....

2024-08-13

After working on a mobile app for about three months, I ultimately decided to abandon the project. In short, the restrictions on iOS background execution made it impossible to create what I envisioned. In this article, I’ll share the development process and explain why I gave up. Whew, it was exhausting!...

2024-05-28

Introduction I have switched from a long-used iPhone to Google Pixel. In this article, I will discuss the reasons and impressions....

2024-05-25

I created "Kotsu-Kotsu", a web app that allows you to consistently record and visualize anything!...

2024-05-22

ChatGPT was released in November 2022, and about a year and a half has passed. I have been continuously using ChatGPT since it became a hot topic. Using ChatGPT has proven to be beneficial for frontend development of web applications. Therefore, in this article, I have summarized three patterns for efficiently advancing frontend development by utilizing ChatGPT. I hope that these patterns will be useful to readers in their development projects. Below are the Figma, source code, and deployment URLs introduced in this article....

2024-03-29

Discovered `container-structure-test` for verifying if the structure and settings within a Docker image are as expected. Check out the container-structure-test GitHub repository. Decided to give it a try....

2024-03-25

I learned about Testcontainers. Testcontainers is a tool that allows you to build a test environment using containers and easily perform integration testing.Using this convenient tool, I conducted integration testing combining Next.js and a database (DB).It seems promising for implementing disposable end-to-end (E2E) tests, and I found it very useful. I'll briefly introduce what I tried....

2024-03-21

I learned about Million.dev and decided to give it a try. About Million.js This library seems to make profiling easier than using React DevTools' Profiler. Profiling performance is usually a cumbersome and time-consuming task. If this can make it easier, I was quite excited about the prospects....

2024-03-20

I learned about "Playwright Component Test" (hereafter referred to as "playwright-ct"), which allows you to run component tests in the browser directly on Playwright, and tried it out. In this article, we share our experience. The actual repository used is as follows...