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Modern software production lines.

A maintained reference on DevOps as the line, SRE as the work of running it, AI engineering as a reviewable tool, and platforms as the substrate beneath the whole system.

The pillars of modern production.

Every article and note is filed under one of these pillars. The pillars are continuous references, not one-shot posts.

Recent essays.

All articles →
  1. 01

    Modern organizations have become very good at trying new technology and much less disciplined at absorbing it. In the AI era, the risk is not experimentation itself, but experimentation without consolidation.

  2. 02

    Internal platforms succeed when they pave the road most teams want to walk and fail when they wall off every other path. A platform that cannot be bypassed is a platform nobody trusts. The work is making the default obvious and keeping the exit honest.

  3. 03

    Useful AI in engineering keeps the same property useful tests have: a human can read what happened, where it went wrong, and decide what to do next. The argument is not that AI is dangerous. It is that anything shipping to production has to be inspectable when it fails.

Short-form takes.

All notes →
  1. 01

    The interesting thing about an andon cord is not the cord. Pulling a cord is trivial. The interesting thing is the answer to the question: what happens to the worker who pulls it?

  2. 02

    The reluctance to call AI evaluation harnesses tests costs more than the renaming saves. Tests get reviewed, run in CI, and have an owner. Evals deserve the same treatment.

  3. 03

    The criticism of long-lived branches is usually framed as a criticism of the branch. The actual problem is batch size. The trunk is just where batch size becomes visible.