Black Cat Notes
SubscribeI’m Kuroneko — building in public. After years working with Japanese companies across manufacturing and IVD for the China market, I pivoted into AI and indie making to ship practical, calm software.
Here I share short takes on AI/product, notes from hands‑on work, and experiments in AI productization, iOS apps & small games, Rust tools, and Python data plumbing. Learn more on my About page.
Recent Posts
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Is the Timing of Codex Resets Really Just Random?
A quick look at recent Codex usage-limit resets, the 7-day reset cycle, and why some extra resets may cost less than they appear.
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China’s Brain-Computer Interface Story Is Starting to Look Real
A look at why China’s 2026 brain-computer interface momentum feels different: clinical use cases are getting clearer, national media is treating it as a public issue, and the payment system is starting to prepare for real adoption.
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What I've Learned Using Codex for Front-End Work, Acceptance Criteria, and Design
A practical note on using Codex for front-end reproduction, setting better acceptance criteria, and avoiding over-engineered agent workflows.
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Three Workflows I Tried to Improve Codex Front-End Aesthetics
I compared three practical ways to get better front-end design out of Codex—from no skill, to OpenAI’s frontend skill, to Stitch MCP—and then checked how Claude Opus 4.6 stacked up.