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phase~1 min readUpdated 2026-06-21#phase#orientation

Phase 00 · Orientation

This atlas is a map from "I can program" to "I understand the machine." It's organized as phases that descend from the mental model of the hardware, down through C and pointers to assembly and the toolchain, then back up into systems and performance — with an operating system built from scratch as the spine project, and craftsmanship habits running through all of it.

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Low-LevelMust KnowThe load-bearing ideas of low-level programming — the handful of truths that, once internalized, make the rest of the atlas click.Low-LevelPhase 01 · FoundationsHow the machine really works under the runtime — the mental substrate for everything that follows.Low-LevelPhase 02 · The C LayerC as a thin layer over the machine, undefined behavior, and manual memory — pointers, the heap, allocators, and the classic bugs.Low-LevelPhase 03 · Down to the MetalReading the assembly your compiler emits, calling conventions, and the full preprocess→compile→assemble→link toolchain with its debuggers.