Notes from
the work.

Software, systems, and the things I’m learning along the way. From first principles to AI in production.

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A little theory. A lot of practice.

Pencil-drawn graph on beige paper, with olive paths connecting its nodes

Algorithms8 min read

External merge sorting beyond available RAM

Plan sorted runs and buffered merges for a file larger than RAM, calculate merge passes and I/O volume, and distinguish a byte budget from object memory.

22 Oct 2026

Foundation

Three miniature block-built clusters connected by channels and small wooden balls

Systems8 min read

A write system call is not a durability receipt

Separate Python buffers, kernel-visible file data and successful fsync, then test abrupt process termination without confusing it with power-loss recovery.

26 Sept 2026