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Technical writing

Notes from the workbench

Source-audited writing about AI systems, product engineering, and the tools I use to build them.

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Why I replaced Fish with Nushell

I replaced Fish with Nushell as my daily shell for structured data and typed pipelines. I kept jq, yq, rg, and fd for focused tasks.

NushellFishDeveloper tools
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Codex Agents V2 in 0.145.0

In Codex 0.145.0, enabling multi_agent_v2 forces V2 while model metadata can select it; V2 adds task trees and explicit context forking in one shared workspace.

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