Writing
Recent notes.
11 notes, 5 per page.
AI
Claude Is Watermarking Output. Here's What Changes If You Ship That Code
Anthropic is rolling out statistical text watermarks and C2PA image manifests worldwide to meet EU AI Act transparency rules. Detection is about to get boring — and official.
Performance
Why Your Node.js API Falls Apart Under Load
It's rarely the framework. It's synchronous work on the event loop, a connection pool set to 'default,' and no backpressure when clients retry.
Systems
What Kafka Actually Solves
Not 'messaging.' Decoupling, replay, and absorbing a spike your database was never going to survive — like 170K–430K ICU vitals a day.
Architecture
Designing Real-Time Systems Without Melting the Database
Separate the hot path from the source of truth. Interpolation and Redux on the client matter as much as Kafka on the server.
Data
When Redis Helps — And When It Doesn't
Caching is not a personality trait. On the QC dashboard it turned a 15-second 10k-row fetch into ~5 seconds. It can also hide a bad query for six months.