Codex and GPG Signing In my usual Git workflow, I sign commits with GPG. There is no deep reason for it, but I like seeing Verified in the GitHub commit history. git config --global commit.gpgsign true This setting itself is fine, but I ran into a small issue when asking Codex to handle Git work. When creating a commit, GPG needs the passphrase, and signing fails at that point. At first, I committed by canceling the signing step, but it felt wrong, so I decided to fix it. ...

There is a phrase: “Give your all to both your hobbies and your work.” Some of my friends and acquaintances are exactly like that. They work on weekdays, then spend their weekends at conferences, events, or on side work. From the outside, it looks genuinely impressive. Because of my work, I often talk with students. I hear things like, “I met that senior at an event,” or “I saw them giving a talk at a tech event.” Many students use those working seniors as role models and try hard in their own daily lives. ...

People say society runs on goodwill. What happens when that goodwill disappears? I was thinking about this after reading a post I saw on X. The gist was that society is still barely holding together because serious and honest people keep working and living without giving up, even while being told they are the ones losing out. Stopping at traffic lights. Submitting paperwork correctly. Not cutting corners where no one is watching. Finding a shortcut that would benefit only yourself, and still choosing not to use it. ...

Just like the title says, many of the things I like feel stuck a few years in the past. The songs I listen to, and even the songs I know, mostly peak around five years ago. I do not really understand recent music. More honestly, I am not even trying to. A few years ago, I still had the energy and stamina to chase new things. I would look up every new anime that was about to start airing and thoroughly check upcoming game releases. ...

If your first thought was, “But it’s not summer,” that is completely fair. And if you are wondering, “What is Sunfaded? Some kind of technical term?” that also makes sense. This is basically me forcing one of my favorite songs on you, so please relax. First, I want you to play the YouTube video below. It is a great song, isn’t it? It really is. ...

I’m not very good at conversation. More precisely, I’m not good at coming up with topics to talk about. Work-related communication is fine. Practical conversations and day-to-day exchanges usually aren’t a problem either. The real difficulty is with private relationships, like family and friends. I simply don’t have many things to talk about. Work is full of things I can’t easily share outside. As for hobbies, I mostly just play games at home or sleep. That is pretty much my routine every week. ...

New Year Greetings Happy New Year. In 2026, I want to enjoy work, hobbies, and everything else. I hope everyone can live without overdoing it, at a steady pace. Looking Back on 2025 I can already hear people saying I should have written this at the end of the year. You’re right. I have no excuse. Work Events It wasn’t exactly a turbulent year, but I kept working steadily. It’s been about two years since I started working at a university, and the mix of “I already know this!” and “This is new to me!” makes for a fun workplace. ...

The title may sound poetic, but what follows is something I have thought about quite seriously. The trigger for writing this article was an exchange with students. In the chat tool of a project (an extracurricular activity) where I serve as an advisor, someone raised the question: “Do general theories of organization really apply to student groups?” It is true that many organizational theories are written with “corporate organizations” in mind. However, I believe that student organizations operate under a set of premises that are fundamentally different from those of companies. If I add together the years I spent in student groups and the years I have watched them as an advisor, I have spent a fair amount of time observing this “gap.” ...

“AI utilization” is becoming commonplace in the engineering community. In such an era, I’ve been thinking about what kind of engineer we should aspire to be. On one hand, there’s the “Brilliant jerk” type engineer—those with overwhelming technical skills but who neglect teamwork. On the other hand, there are engineers with decent technical skills who excel at AI utilization and serve as team facilitators. Through extensive use of Claude Code, I’ve come to see that the latter has a brighter future ahead. Let me share my thoughts on “the future engineer archetype” based on my experience with AI tools. ...

In an Era Where Anyone Can Create, What Is Expected of Engineers? In today’s world of rapidly advancing AI, creating apps and tools is no longer exclusive to engineers. For example, you can describe what you want to do to ChatGPT, and it will generate specifications and code. With no-code tools, you can create functionality and UI with just a few clicks. If you have an idea or want to improve something, even someone without a technical background can turn it into reality. ...