Integrating an AI agent into a 7-year Rails monolith with RubyLLM
TL;DR A Director of Engineering at Mon Ami described adding an AI agent to a seven-year Ruby on Rails monolith…
Ultimate Linux: Building a Minimal Linux Userspace in Pure JavaScript
TL;DR A developer published a tiny Linux userspace implemented mostly in JavaScript and packaged as a standalone binary by transpiling…
Ask HN: What skills will you develop or improve in 2026? Community thread
TL;DR An Ask HN thread asks members which skills they plan to develop in 2026 and links to prior yearly…
URLPattern API: New pattern syntax for matching and extracting URL components
TL;DR The URLPattern API provides a pattern language and a URLPattern interface for matching URLs or specific URL parts and…
The Inner-Platform Effect (2006) — a retrospective on platform anti-patterns
TL;DR A page titled "The Inner-Platform Effect (2006)" is hosted on TheDailyWTF. The provided source shows navigation elements and a…
SubMicro Engine: Ultra-Low-Latency Trading System Achieves Sub-Microsecond E2E
TL;DR An open-source execution engine called SubMicro Engine reports sub-microsecond end-to-end latency, with a median of 890 ns and tight…
Python 3.15’s Windows x86-64 interpreter could be about 15% faster
TL;DR Ken Jin reports that an experimental tail-calling interpreter produces measurable speedups for CPython on several platforms. On Windows x86-64…
BoltCache: A Go-based, Redis-compatible in-memory cache with REST API
TL;DR BoltCache is an open-source in-memory cache written in Go that implements Redis-like features while offering a RESTful HTTP interface…
Ruby 4.0.0 Released — major features Ruby Box, ZJIT, Ractor upgrades
TL;DR Ruby 4.0.0 is now available, introducing an experimental isolation feature called Ruby Box, a new JIT compiler named ZJIT,…