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📝 Originally published in Japanese on Zenn. This is the English version. Canonical: https://zenn.dev/uya0526_design/articles/main_article_reading-spe
Functional programming in TypeScript: the abstractions I actually use and the ones I dropped There's a specific moment I recognize in almos
Functional programming en TypeScript: las abstracciones que realmente uso y las que abandoné Hay un momento específico que reconozco en cas
Proper error handling in Next.js 15 is spread across four different mechanisms that serve different purposes. Most guides cover one of them. This cove
TL;DR: I built EcoAscent; a gamified eco-awareness app where a hand-drawn SVG world visually decays or flourishes based on your logged actions. This
I spent 3 hours debugging why Google Search Console kept showing "Couldn't fetch" on a sitemap that looked completely normal in my browser. The XML re
One thing I’m still trying to reason about with Codex is when a run should be stopped rather than allowed to keep spending context, steps, and time.
TypeScript Discriminated Unions: Making Impossible States Impossible You have a data, an error, and an isLoading field on a type. You know
Most anime ranking sites show you what's being promoted. The big seasonal titles, the ones with the biggest ad budgets, the ones every site agrees on.
A walkthrough wiring open-multi-agent's pluggable MemoryStore to TencentDB-Agent-Memory through its Hermes Gateway, with a real cross-run memory loop
The moment you need realtime in a Next.js app — other users see changes instantly, live feeds, collaborative editing — you face a wall of setup: webso
AI applications rarely remain connected to a single model. A product may begin with text generation, then add structured output for agents, document
Every TypeScript developer uses Pick, Omit, Partial, and Record. But ask them how Omit is actually defined, and you'll get blank stares half the time.
An admin dashboard sounds like a simple project. List some data, add some filters, show some charts. In practice, it's where all the product complexit
Introduction Internationalization (i18n) is one of those features that feels simple until you have to change your underlying architectural
Every commercial vessel on the planet uses electronic navigation charts (ENC) in S-57 format. Despite this, there has never been a working JavaScript
Patterns are abstract until they meet a real workflow with statuses, sub-resources, and a decision that lives separately from status. Here's
Claude can read my files, my terminal, even my screen. But it had no idea what I read in my browser yesterday. That gap bugged me enough to build Bra
Most TypeScript developers share one frustration: how long the compiler takes. For years there was nothing to do but accept it, since tsc was the only
Two repos. One missing guarantee. In agent-governance-plane, a human's approval was cryptographically signed with Ed25519 and written to a tamper-evi