SYSTEMS ARCHITECTURE • INTERACTIVE LAB
How Git Works Under the Hood: State Machines, DAGs & 3-Way Merges
A deep dive into Git's content-addressable storage engine, 41-byte branch pointers, 3-way merge conflict algorithms, and disaster recovery mechanics via git reflog, featuring an interactive visual simulator and systems learning topics.
DISTRIBUTED SYSTEMS • AI ORCHESTRATION
DAG vs. Monolithic LLM: Deterministic Orchestration in AI Systems
Rethinking AI agent pipelines with Kahn's topological sort (1962), parallel fan-out concurrency, and isolated retry blast radiuses to eliminate cascading prompt failures, cutting latency by 42% and token spend by 48%.
LINUX INTERNALS
Demystifying Linux Memory: VIRT, RES, Shared, and Page Cache
Why does your server report 95% memory usage when your application only uses 4GB? A deep dive into virtual memory subsystem mechanics, slab allocations, dirty page flushing, and how the Linux OOM-killer decides which PID to terminate.
AIOps & RELIABILITY
Why Model Context Protocol (MCP) Changes Systems Engineering
Connecting LLMs directly to terminal shells with root access is an operational nightmare. How Model Context Protocol provides a capability-bounded, secure abstraction layer for read-only telemetry, structured diagnostics, and deterministic policy enforcement.
SRE CULTURE
The Anatomy of a High-Impact Blameless Postmortem
How we converted high-severity P1/P0 outages into automated regression tests, self-healing runbooks, and error budget policies at enterprise scale—cutting repeat production incidents by 35%.
ENTERPRISE NETWORKING
Architecting Zero-Trust Cloud Networks with Transit Gateways & WAF
Practical patterns for isolating non-production from production environments, enforcing private subnet segregation, establishing inspection VPCs, and mitigating layer-7 DDoS attacks at scale.