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How to Build a Browser-Based PDF Signature Tool Using JavaScript

PDF documents are commonly used for agreements, forms, approvals, invoices, reports, applications, and other documents that may need a signature or additional...

How to Build a Multi-Tenant SaaS API with Node.js, RBAC, and Audit Logging

A colleague asked me to help debug what looked like a permissions issue in their SaaS project management tool. Users were seeing resources they hadn't...

From Manufacturing to Microservices: Universal Lessons About Reliability

Software engineers often think reliability is a modern challenge. We discuss uptime, distributed systems, observability, and fault tolerance as if they belong...

How to Manage Secrets Securely with Azure Key Vault in Node.js

Last year a client called me about exactly this. Someone ran git log -p on a hunch and found a .env committed two years earlier, never caught. Database...

When It Makes Sense To “Block” The Main Thread

The common rule of thumb is to never “block” the browser’s main thread when running JavaScript tasks. But is this a hard rule? Victor Ayomipo describes a use case he encountered...

Research shouldn’t end in a deck

How I use Claude Code to challenge assumptions and turn research into a living artifactContinue reading on UX Collective »

Lonely at a lower latency

Everything got faster, closer, more certain. The person inside stayed the same.Continue reading on UX Collective »

The brainstorm that couldn’t storm

On the small delay that makes a brainstorm actually stormContinue reading on UX Collective »

The weakest channel

Universality isn’t designed into things. It’s selected by surviving constraints — and often, people are the constraint.Continue reading on UX...

How to Serve a Multi-User AI Agent with FastAPI and Streamlit

In this tutorial, I’ll show you how to serve a multi-user local AI agent as a REST API using FastAPI, then add a lightweight Streamlit UI on top. Instead of...

AI just called design’s bluff

How to Use Apple’s Foundation Models in a Web App with a macOS Companion

Not every AI feature needs a cloud model, with its per-token bills, network round-trips, and private data leaving your machine. If you're on a modern Mac, a...

How to Optimize Enterprise Application Performance with T-SQL Query Tuning and Indexing Strategies

In this article, you'll learn how to optimize SQL Server performance using T-SQL query tuning, indexing strategies, execution plans, and real-world...

HRV Data Is Everywhere. Here's What It Actually Means

Health data is having a moment. Of all the metrics receiving the most developer interest at present, there’s nothing like heart rate variability (HRV). It’s a...

That's Embarrassing: Why Frontier AI Still Makes Things Up, and What to Do About It

It's mid 2026, and the best frontier models out there still hallucinate. I want you to gain two things from reading this article: understanding that AI...

How to Evaluate AI Agents with an LLM-as-a-Judge Harness in Python

In this tutorial, I'll show you how to evaluate a local AI agent with a simple, repeatable evaluation harness. The harness runs the agent against a set of...

How to apply Nir Eyal’s Hook Model to AI products, safely

Delegating taste, orchestration layer, AI workflows

The “mocked, then loved” AirPods effect

How to Kiss a Cannibal