National Cancer Centre apologises after email addresses of over 460 recipients mistakenly exposed

Hooks in Claude Code: A Beginner's Guide

The Scenario Your .claude/settings.json can ask before git push — but that's where a permission's job ends. It's a gate, not a worker: it can't format a file the moment it's edited, catch a missing…

• Hooks in Claude Code run custom scripts at specific workflow points.
• PreToolUse and PostToolUse are key hook events for beginners.
• Hooks can block actions, format files, or log sessions, but must be tested thoroughly.

2h ago ·dev.to

#javascript #webdev #html #showdev

Hey everyone! I built a free screen recorder that runs entirely in the browser — no downloads, no watermarks, no time limits. It uses HTML5 Screen Capture API + MediaRecorder API.

2h ago ·dev.to

Consistent Hashing Proofs

• Derives approximation for workload distribution error in consistent hashing.
• Error typically around 1% for systems with N ≥ 50 servers.
• Begins with single server case, represents workload geometrically on number line.

2h ago ·ch.terabyteoff.com

DNS change monitoring: the seven false alarms I had to kill

The first version of any DNS checker is about ten lines. Look up a record, compare it with the value stored last time, send an email if they differ.

2h ago ·dev.to