Keisuke Inaba

Rails: How to Safely Add New Index to Large MySQL Table

Environments

From Idea to Product in 12 Days with Rails 8

A lot of people are vibe-coding their way to custom apps these days. If you take a few extra steps, it’s actually quite easy to turn a…

Rails: Migration from Resque to Sidekiq

Motivation

Lessons from 3 Years as an Engineering Team Lead

I spent three years working as an Engineering Team Lead at an ed-tech startup (US, full-remote). As my SaaS product grew, I decided to…

Shopify: How to Create a Single-Variant Product with GraphQL API

Shopify made significant changes to the Products API last year, and I finally had a chance to work with the new APIs.

Rails 7.2: Disable YJIT for RSpec to Run Faster

Context

Migrating a Rails App from Heroku to Render

How I migrated a Rails app from Heroku to Render with zero data migration, a single DNS flip, and $828 in annual savings.

Ruby: How to Configure Error Monitoring with Appsignal for AWS Lambda Functions

Rails: Fixed Sidekiq Memory Bloat with jemalloc

Memory bloat issues on Sidekiq

Rails 7.2: Disabled YJIT on Heroku Due to High Memory Utilization

As mentioned in the previous post, YJIT is enabled by default since Rails 7.2.