https://www.systemdesign.academy/explained/microsoft-365-outagesystemdesign.academyen2026-11-13T11:25:00+05:30Microsoft 365 outage, 12 November 2026: why Outlook and Exchange went down, and what else broke https://www.systemdesign.academy/explained/gemini-4-hydrogensystemdesign.academyen2026-11-13T09:20:00+05:30Gemini 4 Hydrogen explained: price, thinking levels, free tier and how it compares with Carbon and Argon https://www.systemdesign.academy/explained/openai-control-roomsystemdesign.academyen2026-11-13T09:15:00+05:30OpenAI Control Room explained: how OpenAI stops a running AI job within 35 seconds https://www.systemdesign.academy/explained/gemini-decisions-apisystemdesign.academyen2026-11-12T10:29:00+05:30Gemini Decisions API explained: Google's model that answers with probabilities, and what it really costs https://www.systemdesign.academy/explained/codex-securitysystemdesign.academyen2026-11-12T09:45:00+05:30OpenAI Codex Security explained: how it scans code for vulnerabilities, and what changed in version 0.10.0 https://www.systemdesign.academy/explained/aws-emulatorsystemdesign.academyen2026-11-12T09:30:00+05:30AWS Emulator explained: test S3, DynamoDB and other AWS calls on your laptop, with no AWS account