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Lessons (7)

• Deploying & Operating Microservices

  … deploy ≠ release Ship code turned off , then turn it on for specific users (staff, 10% of users, one …

• The L6 System-Design Thinking Loop

  A repeatable Staff-level answer: define correctness, size the load, design failure paths, and measure recovery. The big …

• Kubernetes Cluster Architecture

  … menus, how many cooks each branch needs, where new staff go. It keeps the official records. - Branches (the …

• Services & Ingress

  … So the help desk has one permanent phone number that rings whichever staff member is free. A Service …

• Monolith vs Microservices

  … many independent shops, each with its own staff, stockroom and opening hours, connected by shared corridors. A mall …

• REST vs GraphQL vs gRPC

  … Super fast, strict shorthand between staff. Not meant for customers. ![REST, GraphQL and gRPC compared](/img/backend/api …

• What Is Software Architecture?

  … Shop["🛒 Online Shop<br/ (our system)"] Admin["👩‍💼 Staff"] -- Shop Shop -- Pay["💳 Stripe<br/ (external)"] Shop -- Mail["📧 SendGrid …