AI systems
AI agents need context, not hype
Why useful agents depend on cleaner context, clear workflows, permissions, and practical guardrails.
NoteNotes / Fieldwork
Thinking in public,
without the theater.
Writing on technical leadership, useful AI, operating systems, and the craft behind difficult products.
Selected thinking
Working notes from Andrew Erie on technology leadership, practical AI, engineering systems, and the decisions behind durable products.
Technology leadership
What a fractional CTO actually does
A practical look at when a business needs senior technical judgment and what ownership should change.
NotePractical AI
AI for small businesses: a practical starter guide
How to choose a useful first case, understand the cost, keep it safe, and know when AI is the wrong tool.
NoteEngineering
Building real-time voice communication with OpenAI
A technical implementation note on WebRTC, ephemeral keys, and secure low-latency voice applications.
Note