Writing
Articles
Posts from this site and external write-ups, in one place.
5 posts
kyo8.dev
Jun 14, 2026
Designing a single-table DynamoDB schema for a portfolio API
Access patterns first: how I modeled projects, skills, and careers in one DynamoDB table.
kyo8.dev
Mar 2, 2026
Go + Lambda cold starts: what actually moved the needle
Benchmarking binary size, init code, and provisioned concurrency on a real API.
Zenn
Dec 8, 2025
Notes on running stg / prd in separate AWS accounts
AWS Organizations, OIDC federation, and the small annoyances nobody warns you about.
Zenn
Sep 20, 2025
Talking Go and Ethereum tooling at a local meetup
Slides and a short recap from a talk on building developer tooling around Go and Ethereum.
Podcast
Jul 11, 2025
Interviewed on a podcast about backend careers in Japan
A guest appearance talking about the path from bootcamp to backend infrastructure work.