Applied AI and product engineering operations — practical engineering notes from the build lane.
One contract to rule multi-provider models.
Passwordless auth without pain.
Minimal roles that actually work.
Postgres schema versioning without tears.
Practical patterns for real apps at scale.
Traces, prompts, and policy for AI apps.
Edge AI on a budget — offline-first patterns that scale.
The hidden cost of context in production prompts.
RAG is not a vibe — retrieval that doesn't lie.
Productizing dev work without killing velocity.
Experiment loops for product teams.
How to make AI billing indisputable.
Guardrails without rage — designing 'Why Blocked' UX.
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