Beating the compiler at signed 32-bit division
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I made my coding agent explain its own pull requests
The problem: the agent knows why, the reviewer doesn't More and more of the pull requests I review were written by a coding agent. The code is usually fine.
- DiffNotes tool explains coding agent's pull requests
- Concise notes attached to changed code blocks
- Setup involves server, agent skill, and Chrome extension
JavaScript (ES6+) for React Developers: The Definitive Guide
React is fundamentally plain JavaScript. If you ever struggle with state updates, unintended re-renders, or props drilling, the issue is rarely React itself—it is usually a missing piece of modern…
- ES6 (ES2015) crucial for React developers
- Block scoping with let, const improves code safety
- Arrow functions simplify React event handling
Build Multi-Tenant RAG in Next.js Without Leaking Customer Data
A practical pattern for tenant-scoped retrieval with PostgreSQL, pgvector, row-level security, and integration tests. I've spent about twenty years building software.
- Obtain tenant identity from secure server-side check
- Store ownership data with document chunks and foreign key constraint
- Perform tenant filtering in database query before sending to LLM
The 30 Best Gifts for Star Wars Fans (2026)
From marble runs to advent calendars, these are the best Star Wars gifts for fans of all ages.
I backed up every device in my house to one Kopia server, and deduplication saved more space than I expected
A tiny $45 thin client became a low power Kopia hub running Docker and encrypted backups for every household device.
Crime blotter: Apple Store looters in France got bricked iPhones
Jared Kushner's iPhone was reportedly hacked; a major Apple product heist in India; and an investigation concluded after a councilmember found an AirTag on her car, all in this week's Apple Crime…