Writing for engineers
who care about the
inside of the machine.
Long-form essays, postmortems, and field notes on systems, performance, AI, and the discipline of shipping.
That Familiar Ache: Diagnosing the N+1 Query Problem When Your Database Just Can't Anymore
Ever had a simple page grind your database to a halt? The N+1 query problem is often the culprit, a silent killer hiding in plain sight, turning what should be one efficient query into a cascade of costly trips to the database.
Surviving the Microsecond War: Inside High-Frequency Trading Systems
Peeling back the layers of high-frequency trading applications isn't about fancy UIs or abstract cloud principles. It's about brutal optimization, network physics, and debugging systems where milliseconds cost millions. This is how the real game is played.
When 'Just Add Threads' Turns into a 3 AM Pager Duty Nightmare
Peeling back the layers of C++ threads, from CPU context switching to the brutal realities of cache coherency and false sharing that turn textbook concurrency into a production incident.
VPS Deployment: So You Survived Another Night, Now Do It Right
Forget the blog posts that make it sound easy. This is the raw truth about deploying apps on a VPS, forged in the fires of 3 AM incidents. We'll cover what actually matters: security, process management, and not losing your mind.
PostgreSQL Peer Authentication Failed Fix
Learn how to install PostgreSQL and fix the “Peer authentication failed for user postgres” error on Linux systems using simple configuration changes and proper user setup.
Oracle Free ARM VM Capacity Error Fix
Automatically create Oracle free VMs when regions are saturated. Use GitHub Actions and scheduled retries to keep attempting instance creation until capacity becomes available.