Things I built, measured, and broke

Field Notes

Notes about medical challenges, independent apps, and the parts that looked simpler before I tried them.

04 · App Store review

Apple rejected both of my first submissions.

What “Rejected” actually meant, what evidence Apple requested, and what I will send next.

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01 · Secure evaluation

I tried running someone else’s model without giving it the answers.

A first local prototype, what I isolated, and where Docker broke.

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02 · Competition design

The leaderboard is part of the training loop.

Why submission limits are more than an annoying rule.

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03 · Operations

The server bill was about ₩400,000. The work was not.

What that number includes, and what I still need to verify.

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