馬じぇべ

A chronological account of failures when moving from manual publish to GitHub Actions + npm Trusted Publisher. Covers the provenance 422, tag and version ordering, and pre-publish validation.

A small TypeScript utility library for working with ReadableStream<Uint8Array> in browsers and Node.js — covering byte conversion helpers, transform streams, and stream encryption via the Web Crypto API.

Why I packaged my recurring ReadableStream<Uint8Array> utilities into @hsblabs/web-stream-extras — covering the three patterns I kept rewriting, the ByteTransformStream base, and stream encryption via Web Crypto.

Web Crypto gives you strong primitives but no stream interface. This post shows how to encrypt ReadableStream<Uint8Array> using the encryption subpath of @hsblabs/web-stream-extras — covering file encryption, per-stream key management, and pipeline composition.

Got stuck setting up VPC peering between Osaka and Tokyo. Forgot --peer-region, ended up in failed state, couldn't delete it.

How to implement a browser-based editor limited to development mode in Astro. Using Vite middleware and React to make development content management comfortable without affecting production builds at all.

How to install libavif via Homebrew and convert JPEG/PNG to AVIF format. Supports single conversion and batch processing.

How to build Cron-like periodic execution scripts using macOS Launchd. Avoiding environment variable issues with setup including log management.

Organizing challenges in mobile app domain management and versioning from the perspective of web frontend and infrastructure experience. Proposing a startup-time metadata retrieval approach using CloudFront and S3, with comparisons to existing solutions like Firebase Remote Config.