Should You Even Use Microservices?

Microservices are a solution to organizational scaling problems, not a technology choice. Here’s how to tell whether you actually have the problem they solve, before you pay the cost.

July 25, 2026 · 9 min · Hanh Pham

Caching Geospatial Queries Without a Specialized Geo Database

You don’t need PostGIS or a geohash library to cache repeat road-distance lookups: rounding coordinates and a unique index gets you most of the win.

July 23, 2026 · 6 min · Hanh Pham

Self-Hosting a Routing Engine Instead of Paying Per API Call

Road distance, not straight-line distance, is what travel expense claims and delivery pricing actually need, here’s how to get it without a metered maps API.

July 21, 2026 · 7 min · Hanh Pham

Syntax Highlighting with Hugo

Hugo ships with built-in syntax highlighting via Chroma, no plugins required.

July 16, 2026 · 1 min · Hanh Pham