11 articles

📰 Dev.to · Tetsuya Wakita

Articles from Dev.to · Tetsuya Wakita · 11 articles · Updated every 3 hours · View all reads

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I Rewrote python-dateutil in Rust — Even a Naive Port Is Up to 94x Faster
Dev.to · Tetsuya Wakita 5d ago
I Rewrote python-dateutil in Rust — Even a Naive Port Is Up to 94x Faster
TL;DR — pip install python-dateutil-rs, change one import, get 5x–94x faster date parsing,...
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Zod vs Typia vs AJV — I Built a Build Plugin That Makes Zod 60x Faster With Zero Code Changes
Dev.to · Tetsuya Wakita 2w ago
Zod vs Typia vs AJV — I Built a Build Plugin That Makes Zod 60x Faster With Zero Code Changes
When I first released Zod AOT, it required wrapping every schema with compile(): import { compile...
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Why Is Zod v4 Fast — and Where Is Its Ceiling?
Dev.to · Tetsuya Wakita 3w ago
Why Is Zod v4 Fast — and Where Is Its Ceiling?
Zod v4 is faster than v3. But almost nobody knows why. It's not just a cleaner codebase or smaller...
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Build Google Apps Script with Any Bundler: Vite, Rollup, esbuild, webpack, and Bun
Dev.to · Tetsuya Wakita 1mo ago
Build Google Apps Script with Any Bundler: Vite, Rollup, esbuild, webpack, and Bun
Google Apps Script projects shouldn’t be tied to one bundler. So I rebuilt my Vite-only plugin into a...
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I Made an LLM Add Features to Its Own Code — Classic Spring Boot vs Clean Architecture
Dev.to · Tetsuya Wakita 1mo ago
I Made an LLM Add Features to Its Own Code — Classic Spring Boot vs Clean Architecture
In Part 0, both implementations worked. In Part 1, the LLM modified its own code — and the results...
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I Made an LLM Build the Same App Twice — Classic Spring Boot vs Clean Architecture
Dev.to · Tetsuya Wakita 1mo ago
I Made an LLM Build the Same App Twice — Classic Spring Boot vs Clean Architecture
I gave Claude Code identical business requirements with two different architectural contexts. The...
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Enforcing Clean Architecture on AI-Generated Kotlin with Custom Detekt Rules
Dev.to · Tetsuya Wakita 1mo ago
Enforcing Clean Architecture on AI-Generated Kotlin with Custom Detekt Rules
How custom detekt rules, specialized AI agents, and specification-driven development keep Clean...
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CQRS with Clean Architecture in Kotlin: Separating Read and Write Paths for Better Performance
Dev.to · Tetsuya Wakita 1mo ago
CQRS with Clean Architecture in Kotlin: Separating Read and Write Paths for Better Performance
How CQRS inside Clean Architecture gave reads a fast path while keeping writes honest ...
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Clean Architecture in Practice: Swapping Database Clients and Adding GraphQL in Kotlin
Dev.to · Tetsuya Wakita 1mo ago
Clean Architecture in Practice: Swapping Database Clients and Adding GraphQL in Kotlin
How Clean Architecture delivered on its promise — infrastructure and presentation changed completely,...
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Why Your Kotlin Tests Are Slow: How Clean Architecture Enables Sub-Second Unit Testing
Dev.to · Tetsuya Wakita 1mo ago
Why Your Kotlin Tests Are Slow: How Clean Architecture Enables Sub-Second Unit Testing
How Clean Architecture makes domain and application tests run in milliseconds — with no database, no...
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Clean Architecture in Kotlin with Spring Boot: Gradle Modules + Arrow-kt in Practice
Dev.to · Tetsuya Wakita 1mo ago
Clean Architecture in Kotlin with Spring Boot: Gradle Modules + Arrow-kt in Practice
How 5 Gradle modules, Arrow-kt Either, and explicit DI keep your Spring Boot codebase actually...
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