produced by Classmethod

# Next.js articles

Next.jsは、Reactベースのフレームワークです。Webアプリケーション開発の生産性向上に役立ちます。

Prevent Forgetting to Stop SageMaker Real-time Endpoints Launched from Vercel by Automatic Deletion

越井琢巳 (Koshii Takumi)

2026.07.31

I tried E2E testing Next.js LLM streaming without external APIs using Playwright

越井琢巳 (Koshii Takumi)

2026.07.20

Implemented an SSE progress bubble in RAG chat that shows "what it's currently doing"

2026.07.12

Next.js + FastAPI delivered via nginx subpath: 3 pitfalls I encountered — trailingSlash, routing separation, and MuleSoft SSE buffering

2026.06.21

Diving Deep into React Hook Form's form.watch() — What I Learned Implementing Auto-Search Functionality

2026.06.19

# Two Pitfalls in React During IME Composition — Enter to Submit and Debounce Auto-Search

2026.06.19

I tried building and running in production a tournament management app for an AWS-hosted futsal tournament using a serverless architecture!

2026.06.11

I tried prototyping a 2-person browser metaverse with Vercel and Supabase Realtime

越井琢巳 (Koshii Takumi)

2026.05.13

I tried creating a smartphone battle toggle puzzle with Next.js × Supabase Realtime

越井琢巳 (Koshii Takumi)

2026.04.16

I made an app in MCP Apps that allows you to verify JavaScript execution in chat!

2026.03.21

Deploying a real-time 2P Co-op browser game with Vercel + Ably

越井琢巳 (Koshii Takumi)

2026.02.23

I created a browser FPS game using Next.js and Three.js and deployed it to Vercel

越井琢巳 (Koshii Takumi)

2026.02.17

I built a real-time multiplayer quiz game using Vercel and Supabase

越井琢巳 (Koshii Takumi)

2026.02.01

Building a Web App that Vibrates the Smartphone in v0: Implement and Deploy to Vercel with a Single Prompt

越井琢巳 (Koshii Takumi)

2026.01.24

Running a two-player ping pong game with Vercel + Supabase Realtime (Broadcast)

越井琢巳 (Koshii Takumi)

2025.12.20

I deployed a 2-player ping pong game using Vercel + Momento Topics

越井琢巳 (Koshii Takumi)

2025.12.19

Simplifying Next.js Visual Novel UI Implementation by Delegating Image Processing to Cloudinary

越井琢巳 (Koshii Takumi)

2025.12.14

The story of how structuring game specifications in Contentful made it easy to reuse for things like quiz bots

越井琢巳 (Koshii Takumi)

2025.12.09

React writing patterns that occur in business

2025.10.15

I tried to improve DevelopersIO from a performance perspective

2025.10.09