Writing

Blog.

Notes on technologies, AI, system design and the craft of building software that lasts.

Latest

The App Router mental model that finally made Next.js click

Server Components, layouts and streaming stop being confusing the moment you stop thinking in pages and start thinking in trees.

TechnologyAugust 10, 20262 min read

How AI tools actually fit a working engineer's day

Cursor, Claude Code and friends don't replace engineering judgment — they move it earlier in the process. Here's what changed in mine.

AIJuly 28, 20261 min read

System design for real traffic, not whiteboard traffic

Interview system design starts with a load balancer. Production system design starts with a question: what actually breaks first?

System designJuly 12, 20262 min read

Five TypeScript habits that survive large codebases

Types are a communication channel to the next engineer. These habits keep that channel honest when the repo passes 100k lines.

TechnologyJune 20, 20261 min read

Multi-tenant architecture: lessons from building a POS platform

Tenant isolation looks like one architecture decision. In practice it is a hundred small ones — here are the ones that mattered.

System designJune 2, 20262 min read

React state: deciding where it lives before deciding how

Redux vs Zustand vs TanStack Query is the wrong first question. Ownership is the first question — the library follows from it.

TechnologyMay 15, 20261 min read