https://planetek.org/insights Field notes from Planetek LLC on AWS cost engineering, migrations, and GenAI guardrails, written by the engineer who did the work. en-us Sun, 02 Aug 2026 09:00:00 -0600 https://planetek.org/insights/what-twelve-aws-environments-cost https://planetek.org/insights/what-twelve-aws-environments-cost Sun, 02 Aug 2026 09:00:00 -0600 Trevor Lewis Twelve production-grade AWS environments plus this website metered $12.23 in AWS usage in July 2026. The cost-engineering rules that keep it there. https://planetek.org/insights/genai-demos-with-hard-cost-caps https://planetek.org/insights/genai-demos-with-hard-cost-caps Wed, 29 Jul 2026 09:00:00 -0600 Trevor Lewis Anyone can use our Bedrock-backed assistant and model workbench, yet the worst-case daily spend was computed before launch. The guardrail stack, layer by layer. https://planetek.org/insights/move-your-website-to-aws-without-breaking-email https://planetek.org/insights/move-your-website-to-aws-without-breaking-email Sun, 19 Jul 2026 09:00:00 -0600 Trevor Lewis The risky part of a website migration is the DNS zone that carries your mail. The order of operations that made our own cutover boring.