Niels Berglund

Interesting Stuff - Week 28, 2026

Week 28 roundup: Google's quiet OKF spec, finding your unknowns with Claude Fable 5, Lilian Weng on harness engineering, and Anthropic's J-lens inside Claude's mind.

Posted by nielsb on Sunday, July 12, 2026

I Built a Mac App in a Language I Don't Know, for an OS I Barely Understand

I've missed the Windows app Everything since switching to Mac. So I asked Claude Fable 5 to build it for me: Needle — instant file search for macOS, written in Swift, a language I don't know.

Posted by nielsb on Saturday, July 11, 2026

Interesting Stuff - Week 27, 2026

Week 27 roundup: is agent 'self-improvement' just string mutation, SkillOpt trains skills like weights, agentic loops explained, and Fable 5 is back.

Posted by nielsb on Sunday, July 5, 2026

Interesting Stuff - Week 24, 2026

Week 24 tech roundup: writing loops instead of prompts, self-service analytics with Claude, Managed Agents on a schedule, the Fable 5 launch, and the US government's directive to pull it days later.

Posted by nielsb on Sunday, June 14, 2026

Technology musings about coding and data. Some topics: .NET, SQL Server, AI/ML, Big Data, Streaming, Kafka, Azure Data Explorer, and a lot more.