Writing
How real systems behave: embedded Linux, IoT fleets, networking, and the tooling around them.
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Three minutes to boot, two of them in Python imports
A step-by-step method for profiling the boot of a small Linux board full of Python services, and what it found on ours.
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You might not need supervisord
Our devices ran two process supervisors, and one of them recovered by calling the other.
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One frame off: how we keep a wall of projectors in sync
Six architectures in five months, each one right until a real show broke it.