Top stories for one week

The open hardware water cooling controller project

"I've failed 17 times with the exact same error": An agent debugging tale

A smart-glasses HUD app for guiding IKEA assembly [video]

Backpropagation: Find Partial Derivatives [video]

Developing a food-safe finish for my wooden spoons and cups

2026: The Last Year Before AGI

Thinking About Thinking, with Reference to Galileo

Martin Kleppmann and Chris Riccomini on Designing Data-Intensive Applications 2E

Introducing Physical Warp Drives (2021)

Show HN: Open-source reference architecture for AI Agents (LangGraph, Pydantic)

Show HN: Freedom Graph – FI calculator that models sequence-of-returns risk

Real estate investment analytics with ROI Explorer

Lightmatter Aims to Leapfrog I/O Limitations with 3D Photonic Interconnect

OpenSpand – an expansion board for Sinclair ZX81, Timex Sinclair 1000, or clone

IBM 129 Key Punch Operator's Reference Manual [pdf]

"He almost has to keep buying"

Speed Reading (The Meaning of Language)

Show HN: Unofficial Advent of Code digital gifter

Show HN: OMyTree – A visual conversation tree for AI chats

Using RDP without leaving client filesystem traces: MSTSC public mode