A personal record of small tech experiments and ideas from daily life. Most posts are English versions of articles originally written in Japanese on zenn.dev.
Introduction When I came back to Go, I wanted to load a small configuration file into a struct. I found Viper while browsing awesome-go and tried it with an env-format file. This example reads a .env
Introduction I first tried Scala.js with Vue.js years ago. Recently, I revisited it and found that the ecosystem also has React bindings and ScalaWind for writing Tailwind classes through a typed Scal
Introduction I like keeping data access behind a repository and passing that repository into a service. When I tried this in Python, I found that typing.Protocol could describe the interface without r
Introduction I sometimes need to get the latest row for each group in MySQL: the most recent login per user, the latest status per order, or the last edit per article. For MySQL 8.0 and later, ROW_NUM
Introduction Lately, I've been working in a style where I keep multiple tasks running in parallel using the Codex app and git-wt.However, in a docker compose-based development environment where backen
This is a brief memorandum of building a simple TODO application with TypeScript + Vite + React powered by Supabase. I walked through everything from spinning up Supabase locally to implementing the application UI. All source code is available at: ht...
Introduction During development, it's common to want to monitor file changes and automatically run a specific command when a change is detected.In this article, I’ll introduce a useful tool for that purpose: the entr command. What is the entr Command...
Introduction Claude Code Action is a feature that assists with code generation and editing via an AI assistant. By default, command execution is restricted for security reasons.This article serves as a memo on how to configure allowed_tools to enable...
Build robust and maintainable command-line interfaces in Rust using clap's enum support for commands and options.
