Archive - Mastering JS

Building an AI-Powered Chat Backend with Node and Mongoose

Plus a brief overview of our sorta-but-not-really-new project, Mongoose Studio

Jul 25 •

June 2025

Semantic Search for Obsidian — AI-powered search, built with Astra and Mongoose

How we built an Obsidian app for semantic search with Node.js and @datastax/astra-mongoose, backed by DataStax Astra (Cassandra)

Jun 13 •

May 2025

From Tour of Go to Tour of Polar: Teaching Authz with Code

Authorization is one of those things that sounds simple—until you actually have to build it.

May 7 •

January 2025

On Separation of Concerns vs Locality of Behavior

Separation of concerns is always good. Or is it? A more critical look at software engineer's most abused virtue.

Jan 28 •

The Making of Oso Golf: A Full Stack Deep Dive

How we approached design and architecture to create Oso Golf.

Jan 6 •

April 2024

Why We Love Tailwind and You Should Too

We've been moving our apps over to Tailwind CSS over the last few months. Tailwind is controversial, and normally we don't use CSS tooling; but we think…

Apr 26, 2024 •

July 2023

Building a Hot Dog/Not Hot Dog Image Classifier in JavaScript

The Silicon Valley TV show joke comes to your browser, courtesy of MediaPipe and Brain.js

Jul 26, 2023 •

May 2023

What Are Good Side Hustles for Web Developers?

We strongly believe that every web developer should have a side hustle. Here's a few ideas.

May 30, 2023 •

March 2023

Mastering JS is Now on Substack

Welcome to the new Mastering JS newsletter! First issue on owning your content, SEO, and what's AI good for?

Mar 28, 2023 •

January 2023

This is Mastering JS.

Jan 31, 2023 •

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