Koichiro Amakasu

Undergraduate Student

I am a third-year student at Keio University, majoring in Commerce with a focus on econometrics. I will study abroad at the University of Hawaii at Manoa from Fall 2025 to Spring 2026, where I plan to take courses in computer science and broaden my international perspective. I also run a digital services company and have experience in web development, econometric analysis, and project management. I expect to graduate in Fall of 2027.

Interests: Web development and CMS, Applied econometrics, Robotics, Cyber security, Creating EC websites

Projects

Club Oven Lovin 2025-12-01

A recipe-sharing platform with safe image uploads, resilient data flows, and a deployment-ready pipeline.

Next.js 14 Prisma/PostgreSQL Object Storage UX Testing

yamazemi.info — the site that got me into the seminar, and why I’m redesigning it 2025

I built yamazemi.info because it was the website that nudged me into the research seminar. It’s since become our little bulletin board for announcements and notes—and I’m shipping a mobile-first redesign (see the two GIFs).

Web Design Community Seminar Keio

so_long — building a tiny maze, getting stuck, and getting through 2025

A customizable px-tile maze game in C (MiniLibX). I themed 'C' as Stormtroopers you clear by passing through, and 'E' as R2-D2—reach him after wiping the board while a chaser hunts you. Includes build notes, sprites, and two short clips: too hard → tweaked map → clear.

C MiniLibX 42 42tokyo Dev Containers Pixel Art

helloWorld — and hello water 2025

From beginner to 50 free 36.96 → 28.91, then a break. Now—thanks to the WRC and Duke Complex—I’m aiming to beat my past self again. A short story about environments, small wins, and why I’m back in the pool.

Swimming Training Log Study Abroad Goal Setting

Reflecting on AI in ICS 314: WODs, Club Oven Lovin’, and Beyond

15 Dec 2025

I. Introduction AI showed up everywhere in ICS 314 this semester—from Next.js WODs to the Club Oven Lovin’ final project. I leaned on ChatGPT-style agents to plan tasks, generate prompts for teammates, and sanity-check Prisma changes. Tools like GitHub Copilot...

Patterns in the Pantry: Rediscovering Our Club Oven Lovin’ Architecture After M2

03 Dec 2025

From Thanksgiving Layover to Design Pattern Do-Over Milestone 2 (M2) went by in a blur. I spent that stretch bouncing between Boston job interviews and Thanksgiving travel, which meant I wasn’t as present in the repo as I wanted to...

Reflect on Software Engineering: Shipping Club Oven Lovin

02 Dec 2025

Introduction Building Club Oven Lovin forced me to treat software engineering less like a class assignment and more like a public product. The project combined appetizing UI, strict data protections, and a delivery deadline, so every decision—from image uploads to...

Final Project Idea

04 Nov 2025

MānoaLingo: Capture, Enrich, and Review the Words You Meet Authors Koichiro Amakasu Miron Suarez Chloe Teijeiro Nathan Vogel Kevin Lee Overview The problem: Many UHM students meet new foreign-language words in classes, conversations, or media, but it’s hard to capture...

Software Engineering Nextjs

UI Frameworks Are a Second Language — Why I Chose Bootstrap 5 (and When I Wouldn’t)

10 Oct 2025

TL;DR UI frameworks are a second language. They come with vocabulary (classes), grammar (component APIs), and idioms (utility-first patterns). Learning Bootstrap 5 costs time and frustration, but the payoff is speed, accessibility, and a shared dialect that plain HTML/CSS rarely...

Linting My Brain: What Two WODs Taught Me About Coding Standards

25 Sep 2025

TL;DR I used to think “coding standards” meant bikeshedding about braces and spaces. After a week of ESLint + TypeScript and two WODs, I now think standards are the shortest path to writing correct code faster. The rules didn’t just...

See all 8 essays