DLBlog

Featured Writing

5
01
WritingMar 2026

Building an OS in the browser

A deep dive into recreating Windows XP entirely in Next.js — from z-ordering nightmares to an AI-powered command prompt.

02
WritingMar 2026

dennislee.me

Why .me is better than .com, and what it means to render yourself as a website.

03
AIMar 2026

The agent that calls you

Building an AI assistant that proactively calls you on your phone when it notices something you should know about.

04
AIFeb 2026

Rich Sutton was right

The bitter lesson keeps proving itself — general methods that scale with compute always win over hand-engineered approaches.

05
PhilosophyFeb 2026

The tyranny of convenience

We optimize for convenience until we've optimized away everything that made life worth living.

Pet Projects

3
Mar 2026

Windows XP Desktop

A pixel-perfect Windows XP recreation in the browser. Working taskbar, start menu, draggable windows, AI-powered command prompt, Snake, file explorer, and more.

LiveSource
Mar 2026

Donna — AI Executive Assistant

A proactive AI assistant that manages calendar, email, and knowledge graph — and calls you on the phone when you forget things.

Source
Mar 2026

dennislee.me

This website. A zen garden landing page with a 3x3 letter grid, animated canvas background, and a blog that doesn't look like every other blog.

LiveSource

Good Reads

2
Mar 2026

Situational Awareness

via situational-awareness.ai
Jan 2026

Tools for thought, not tools for answers

via numinous.productions