🇺🇸 Hacker News English

The average rice price in about 1,000 Japanese supermarkets fell to ¥3,920 per 5 kilograms in the week through June 15.

This marks the first time prices have dipped below ¥4,000 since early March and the fourth consecutive weekly decline.

The drop of ¥256 from the previous week is the largest weekly fall since March 2022.

Chris Crawford pursued computer games as genuine art, beginning with the simple social game Gossip and later focusing on Arthurian themes.

He created interactive storytelling platforms—Erasmatron, Storytron, and Siboot—but none attracted users due to their complexity and steep learning curve.

His final self-directed project, Le Morte d’Arthur, succeeded as interactive art but reached only a small audience.

Hooks allow users to run custom shell commands at defined points in Claude Code’s lifecycle.

Common use cases include notifications, code formatting, logging, feedback, and permission enforcement.

Hooks are defined in JSON settings files using matchers to target specific tool events and shell commands to execute.

Daniel Xu discovered an elaborate model train setup under his newly purchased Melbourne home.

He is a rolling stock engineer and lifelong train enthusiast.

The model network was built by the previous owner’s father in the 1960s.

Datadog disclosed a one-time $65M upfront bill in Q1 2022, later confirmed to be from Coinbase for 2021 usage.

Coinbase’s rapid growth in 2021 led to high observability costs, which they settled in early 2022.

Coinbase began building an in-house Grafana/Prometheus/ClickHouse stack to reduce costs and gain control.

Immich is widely recommended as an open-source self-hosted photo library with strong local AI features and a polished UI.

Photoprism offers facial recognition and clustering but struggles with performance on large collections and slow development contributions.

Ente supports self-hosting with end-to-end encryption, local AI processing, and CLI tools for data synchronization.

Context engineering is a broader approach than prompt engineering, focusing on all inputs an AI sees before generating a response.

Context includes system instructions, user prompts, conversation history, long-term memory, retrieved data, available tools, and structured output formats.

The success of AI agents depends more on the quality of the provided context than on the underlying model.

Qualcomm released the open‐source Embedded USB Debug (EUD) library for SoCs since 2018, enabling deep debug via USB.

EUD exposes a SWD debug interface over a standard USB port with no extra hardware required.

Qualcomm’s openOCD fork now integrates EUD support, but community patches and rebases were needed for modern toolchains.

Proton has joined a class-action lawsuit against Apple to challenge its App Store policies under US antitrust law.

Recent global rulings, including a €500 million EU fine, show Apple’s App Store rules are deemed anti-competitive.

Apple’s 30% fees and developer restrictions harm privacy-focused apps and inflate prices for consumers.

The article presents a novel method to create type-safe generic data structures in C by leveraging unions to carry compile-time type information without runtime overhead.

It describes four levels of generic implementation: macro-based headers, void pointers, inline flexible array storage, and union-based type checking.

The union-based technique defines List(type) and uses a dummy payload member for type inference, letting the compiler enforce correct data types.