e_opore posts 15 system design

- An X thread compiled 15 system-design principles covering scalability, availability, reliability, performance, fault tolerance, load balancing, caching, database design, microservices, APIs, message queues, security, observability, monitoring and CI/CD. - The author paired the principles with AI prompts aimed at senior engineers for system design, debugging, scaling from 100 to 1,000,000 users, performance optimization, code review and cross-team architecture decisions. - It emphasizes trade-offs, guardrails and observability for dependable, efficient systems — material useful for engineers pushing cross-team architecture and reliability work. (x.com)