Spec-Driven Development: the SDD → RPI → Harness loop
Why writing the spec before the code isn't ceremony — it's the only way to parallelize AI without rewriting three times.
Writing
Long-form notes. Architecture, applied AI, and the patterns that keep software alive in production — written from real systems, not slides.
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Context Lattice: coordinating multiple AI squads without losing the thread
How lat.md files become the canonical source of context across parallel agents, and why that solves the telephone-game problem in AI squads.
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Five lessons from card-present payments in self-checkout
Idempotency, offline queues, and the invisible bug of a terminal stuck mid-transaction — lessons from putting card payments into self-checkout.