Kenta.T — Portfolio
As someone who can build with technology, I keep making products that make life in Japan a little richer for all of us.
Thank you for visiting.
By day I'm a salaried API engineer (Java / Python). On the side, I build and run "Capsule Hunt" on my own — a platform for sharing where capsule-toy machines are and what they have in stock (over 1,900 machines registered so far). I make full use of Claude Code and handle everything from planning to implementation and operations by myself.
Having moved from IT consulting to web marketing, business planning and then engineering, I care about building things that work as a business — not just things that can be built, and not just ideas.
Generative AI has made it possible for an individual to build a full-fledged product. That is exactly why I feel it is my mission, as someone who can build with technology, to keep making products that make life in Japan a little richer. My trade name, Everbundance, combines "Ever" (lasting) and "Abundance" (richness) to express that intent.
I take on requests to build websites, e-commerce sites, web services and apps. Even if all you have is "I want to make something like this, but I don't know who to ask," feel free to get in touch.
I dote on my son, born last year, spend relaxed weekends with my family, and enjoy camping and traveling abroad a few times a year.
A dual-camera app built around the concept "grill both sides, shoot both sides." It runs the rear and front cameras at the same time, so the photographer and the subject share one frame. It supports simultaneous photo and video capture, and you can swap the front and back views with a tap. Designed with privacy in mind, it sends no data externally and has no analytics at all. Now available on the App Store.
A web service for searching the locations and stock status of capsule-toy machines across Japan. Stock status is kept up to date by user posts. I plan to add a gamified element: earn points by posting and updating stock, and top monthly-ranking users receive gifts. Bandai Namco's Gashapon lets you search stock per store, but other manufacturers can't be searched online, so I built this hoping people could find where to get the capsules they want. Currently being prepared for public release.
An iOS app that helps you find the perfect park for your dog on a map. Facility tags such as dog runs, water fountains, shade and parking, plus photo reviews from fellow dog owners, tell you what a park is really like before you go. You can post only when you are near the park (within 300 m), earning points as you do, and the places you've walked are kept as memories on your My Page. It works right away with no sign-up, has no ads and is completely free. Your location is used only to check whether you are at the park — it is never stored on a server or made public. Park data comes from OpenStreetMap contributors. Currently being prepared for release.
Built with Claude Code during my parental leave, using Next.js × Supabase. "Fall for the heart before the face." BlindDate is an app that embodies a new way of meeting — connecting through voice and values rather than looks. You deepen your relationship through profiles and calls, and only when you both feel "I'd like to meet," do you show each other your faces. It aims to let people meet someone they connect with from the inside, free from lookism.
The first app I ever built, with Flutter × GCP × Stripe Identity. A platform where you can find someone to stand in line for you, or earn money by standing in line for others. Clearing the legal hurdles was too much for one person, so I gave up on releasing it. Only a demo is available.
A scheduling service for introducing baby food. Built with Claude Code during my parental leave. My wife plans the baby-food schedule, and existing apps made it awkward to change ingredients midway, so I made it simple to edit ingredients in a calendar view. Partway through I thought "the competing services are good enough!" and shelved the release. The site can be viewed, but data cannot be registered.
Contact
I take on requests to create websites, e-commerce sites, web services and apps. Feel free to share your idea — let's give it shape together.
