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Takuya Matsuyama

Join me on a behind-the-scenes coding journey. Weekly updates on projects, tutorials, and videos

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Conviction: What 1.5 years and one burnout taught me about coding with AI agents

Disclaimer : I used AI to correct my broken English TL;DR What I learned through a 1.5-year journey of developing a new version of my app, including a 3-month burnout. AI should always be secondary in your life. You can't go back to the past.

Inkdrop Roadmap vol.6: Completed 🎉 — Now preparing for the official v6 release

Hi folks, it's Takuya here, the solo developer of Inkdrop . I'd like to report a status update on the Inkdrop project here. About a year and a half ago, I published the roadmap of Inkdrop vol.6 . And I'm happy to announce that every

I made a Claude Code session manager for tmux

Hi, it's Takuya. I'm happy to introduce a tool for managing multiple Claude Code sessions in tmux. Here is a demo video: First, let me share a bit about the journey that led me to build it. Or, you can just jump right to the repo

A day in the life of a Japanese indie developer

In the morning, I saw my daughter off to her school bus stop. I recently came across comedian Atsushi Tamura’s conversational nodding technique and thought it sounded interesting, so I immediately tried it out during some small talk with my mama-tomo (mom friend). The results were instant.

10 years of indie dev: How I went global from Japan (talk w/ Hiroshi) - Part 1/2

I joined Hiroshi's podcast episode a few weeks ago. We shared our experience and knowledge on indie dev. I'd like to cross-post our talk in English here. I also tried to create an English dub using AI. The voice cloning quality is quite impressive, so

What a Japanese cooking principle taught me about overcoming AI fatigue

Hey, what's up? It's Takuya . I've been thinking about how to live well in this AI era as a developer, content creator, and artist. By “living well,” I mean enjoying the act of creating while maintaining good mental health. I imagine many

How to run Claude Code in a Tmux popup window with persistent sessions

Hey, what's up? It's Takuya. I've been using Claude Code in my terminal workflow. At first, I was running it at the right side of my terminal using tmux, but I found it not useful because it was too narrow to display messages and

I made my Keychron K2 HE stealthy

Hey guys, I've got a new keyboard: Keychron K2 HE and customized it with blank black and wooden keycaps. So, I'd like to share how I did it. Here is a video: Unboxing The above keyboard is Keychron Q1, which I've been using for

Note-driven agentic coding workflow using Claude Code and Inkdrop

Hey, what's up? It's Takuya. I came up with another AI coding workflow that is note-driven, using Claude Code and Inkdrop . When I was using Claude Code's plan mode, I found the generated plans hard to read on the terminal because the CLI

My 2025 indie dev journey review

Hi, it’s Takuya . Happy new year! It’s already mid-January, but I want to look back at my activities in 2025. If I had to sum up last year in one word, it was the year I got the full "unlucky year ( Yakudoshi / 厄年

Write, then walk: Why a simple notes app is sufficient

Hi, it's Takuya . I want to share my thoughts and methodology on how to generate new ideas from your notes and memos. I'm the author of Inkdrop , a Markdown note-taking app mainly designed for software developers with a core focus on simplicity. I might be

Don’t be a scary old guy: My 40s survival strategy with charm

Hi, it’s  Takuya . Last week I had my birthday and turned 41 (November 19th). When I was younger, I could never really picture what life in my 40s would look like. It’s this vague age where you don’t have a clear image of

My plan to avoid hyperfocus and keep a healthy work pace (as a dad of two)

Hi, it's Takuya here. As I wrote in my previous post , I recently pushed myself too hard with my indie SaaS dev work and ended up burning out. One of the main reasons was my tendency to hyperfocus. When I get absorbed in something, I tend to lose

How low self-esteem and hyperfocus drove me to burnout

Hey, this is Takuya . Recently, I pushed myself too hard on indie development and ended up sick , as I posted a video on my channel recently. My atopic dermatitis flared up badly, and my quality of life dropped sharply. It was like hell, literally. I’m still recovering, but

The scariest “user support” email I’ve ever received

Hi, it's Takuya . As your app grows in popularity, you occasionally start to attract attacks aimed directly at you—the developer or site owner. Just the other day, I got one that was honestly terrifying, so I'd like to share it. The Email Subject: Cookie