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Portfolio and technical blog of Ryotaro Kimura (木村亮太朗), known as @ryoppippi (pronounced りょっぴっぴ), featuring open-source projects, talks, publications, and software engineering articles.

Hunk is a review-first terminal diff viewer for agent-authored changesets. Multi-file review stream, inline AI annotations, watch mode, TypeScript extensions, and Git/Jujutsu integration.

An attempt to describe CSV-like formats in a obvious and easy to understand way, complete with code examples aimed at developers.

Hookdoo Homepage

TradingPedia provides access to educational resources to help you learn Forex, Stocks and Commodities. You can also find expert reviews of regulated trading platforms that we tested with real accounts.

End Configuration-Related Outages CUE Hub stops misconfigurations from reaching production. It connects to your existing architecture to provide automated pre-deployment safety checks and impact analysis for every change. Book Demo Learn more Prevent costly outages Over 50% of major outages are due to misconfigurations, leading to billions of losses and reputational damage yearly. We build tried-and-tested solutions used by industry leaders to effectively prevent them.