From schematics to production — notes along the way.
Engineering notes on full-stack software, IoT, infrastructure, and hardware — projects, experiments, and things worth keeping.
Recent posts
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Aliyun SLB pitfalls
Nginx proxy timeouts and buffers that helped behind Aliyun SLB long uploads and slow clients.
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A password manager
Early password-manager concept: MiniKeePass on iOS plus a BLE helper on Mac — demo video and downloads.
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Lightweight iOS hotfix library
Links to a lightweight iOS hotfix library and Lim Boy’s write-up on the technique.
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DNS for China Unicom Dalian
macOS one-liner to use a Dalian China Unicom–friendly DNS setup with a dynamic secondary resolver.
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JS bridge for iOS and Java
Small libraries to call JavaScript functions from iOS, Java, and Android (BSF).
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