plumshell

plumshell

I make simple apps.

Hi, I am Non Umemoto, a Japanese indie developer from Tokyo.

Writing

The Future of Overwork in the Age of AI

I believe one of the next major social issues will be overwork caused by collaborating with AI. I’ve already experienced it over the past few months, so I’d…

AI Is Changing Work—And Indie Devs Feel It First

I’ve been making a living as an independent app developer for over 10 years, and lately, I’ve been experiencing—quite intensely—the so-called “AI-driven work…

AI Speeds Up Dev, Cloning Comes Easy Too

Lately, I’ve been developing apps with AI every day. It’s incredibly easy. And fast. You can build out all kinds of features instantly. And the AI we use for…

ChatGPT Revolutionizes App and Blog Localization

It has been a year since I started using ChatGPT. I mainly use it for programming and language translation, and the translation tasks, in particular, have been…

I watched “Oppenheimer” in a packed theater in Japan, the atmosphere following the atomic bomb experiment was indescribably intense

The other day, I finally went to see the movie “Oppenheimer” that I had been wanting to watch for so long. It’s a Nolan film, and its historical background is…

I made a comparison video between ChatGPT and iPhone’s text-to-speech

Hello. I am someone who, about 15 years ago, wanted to listen to web news and blogs via text-to-speech while doing other things, so I created a reading app.…

Having a Game I’m Really Into Makes Every Day Incredibly Enjoyable

About a month ago, I became hooked on mahjong, the ultimate game. It’s a bit late in my life to start, but that’s how it is. In the past, I might have thought,…

As a solo developer, I decided to offer phone support, and this is what happened

This year, around February, I started offering telephone support for Taxnote, which I hadn’t done up until then, because the idea made me anxious. I intended…

A Better Text to Speech App for Pocket & Evernote Users

Pocket for iOS has own text to speech function, but it’s not useful enough because of the following reasons. Pocket App Problem 1.You can’t make Playlist to…

The Top 10 Most Useful Tools for iPhone/iPad Business & Development

I’ve been developing iPhone/iPad apps for over 5 years as an indie iOS developer who makes a living from them. Nowadays, there are many useful tools for app…