https://wypyszynski.dev/blog/ Predictive autoscaling, AI agents in production, cloud architecture and software engineering. en Mon, 20 Jul 2026 16:00:00 +0200 https://wypyszynski.dev/blog/serverless-direct-to-s3-uploads/ https://wypyszynski.dev/blog/serverless-direct-to-s3-uploads/ Mon, 20 Jul 2026 16:00:00 +0200 A serverless file-upload API where bytes never touch your compute: a JWT authorizer plus S3 presigned URLs. Covers the authentication-vs-authorization trap (a real BOLA fix), object-level state via S3 tags, and multipart for large files. https://wypyszynski.dev/blog/car-hmi-emulator-in-the-browser/ https://wypyszynski.dev/blog/car-hmi-emulator-in-the-browser/ Mon, 20 Jul 2026 14:00:00 +0200 An on-demand Android Automotive (Cuttlefish) emulator platform on AWS: browser-delivered HMI with bidirectional audio over WebRTC. Root-cause analysis of the UDP media path, fail-closed network access, and self-service provisioning of bare-metal hosts. https://wypyszynski.dev/blog/ai-agent-in-the-ops-team/ https://wypyszynski.dev/blog/ai-agent-in-the-ops-team/ Mon, 20 Jul 2026 12:00:00 +0200 Adopting an AI agent in operations is 20% a model problem and 80% a trust problem. Read-only by default, approval gates, a full audit trail — and only then intelligence. Notes straight from production. https://wypyszynski.dev/blog/autoscaling-that-anticipates-traffic/ https://wypyszynski.dev/blog/autoscaling-that-anticipates-traffic/ Mon, 20 Jul 2026 09:00:00 +0200 Reactive autoscaling is always late, because CPU is a lagging indicator. How database connections and IOPS predict load 5–15 minutes ahead — and how that produced a 73% faster reaction.