Samuel Lawrentz · engineer & team lead · 9+ years
I build interfaces,
systems, and teams.
Nine years of shipping pixel-perfect UIs and the systems behind them. I write monthly about the craft - code, tools, and leading engineers.
Lighthouse 41 to 100 - Delete the Cool Thing First
I shipped a WebGL fluid simulation on my homepage and Lighthouse gave me a 41. Here is everything I had to delete, measure, and un-animate to get to 100 on a real phone.
Read post
Writing
All posts- Aug 01, 2026 Glance - A Self-Hosted Alternative to Claude Artifacts
- Jul 07, 2026 The Five Ways to Bring Your Boss a Problem
- Jul 06, 2026 A Sandbox That Boots in 60ms - MicroVMs vs Containers for Untrusted Code
- Jul 06, 2026 Rendering Millions of Points in the Browser Without Killing the Tab
- Jul 06, 2026 The Part of the Job AI Can't Grade - A Developer's Edge in the Age of AI
Projects
GitHubkron
Cron, but it actually tells you what happened. Output capture, run history, failure tracking.
clipssh
Send clipboard screenshots to remote SSH hosts.
jira-commit-helper
VSCode extension that puts JIRA ids into commits.
quotes-generator
Browser image quote generator with Unsplash backgrounds.
react-highlight-textbox
Highlight patterns inside a text input in real time.
rc-json-editor
Lightweight, dependency-free JSON editor for React.
pasttenser
A tiny API that returns the past tense of any English verb.