Heartbeat: How Distributed Systems Know You're Still Alive
The simple signal that prevents your servers from becoming digital zombies
Search across 115 posts, 19 explainers, and 57 topics
Your JSON is Costing You Thousands: Why TOON Might Save Your Budget
How a simple format change can reduce LLM API costs by 40-50%
Stop Blocking Your Paying Customers: Build a Smart Rate Limiter
How to protect your API without blocking legitimate users
How Shopify Powers 5 Million Stores Without Breaking a Sweat
Inside the architecture that handles Black Friday at massive scale
WebTransport: The Protocol That Fixes What's Broken in WebSockets
How HTTP/3 and QUIC are changing real-time communication on the web
What Actually Happens When You Type a URL
From browser to backend server - the complete journey of a DNS request, with performance tricks and production insights
AWS US-East-1 Outage: How a Network Load Balancer Bug Took Down Half the Internet
A 12-hour disruption in AWS's largest region affected Netflix, Snapchat, Robinhood, and millions of users worldwide - here's what went wrong and what developers can learn
Postgres 18: The Release That Makes Databases Fast Again
Async I/O that's 3x faster, skip scans that actually work, and OAuth built-in - here's what this release means for your production systems
Java 25 is Finally Here: The LTS Release That Changes Everything
Simplified syntax, faster performance, and memory savings - here's what 3 years of Java evolution brings to your codebase
How Ticket Booking Systems Handle 50,000 People Fighting for One Seat
Inside the architecture that powers BookMyShow, Ticketmaster, and what happened during the Taylor Swift meltdown
Hash Collisions: The Hidden Performance Killer in Your Code
Why your O(1) lookup just became O(n), and what you can do about it
Why JWT Replaced Sessions: Building Auth That Scales
How stateless tokens solved the scaling problem that broke every session-based system
How Kafka Works: The Engine Behind Real-Time Data Pipelines
Inside LinkedIn's log that changed how we think about messaging systems
Kubernetes Architecture: The Operating System for the Cloud
How Google's container orchestrator became the backbone of modern software deployment
