David is a full-stack engineer and technical writer who makes complex technology accessible. He covers AI tools, developer workflows, SaaS reviews, and emerging tech trends. 15 years building products, 500+ articles published. Ex-Amazon, ex-Stripe.
ls -la ./david-park/
{# Browsers pick the smallest supported format: AVIF → WebP → JPEG.
w=640 covers retina mobile + most desktop cards (the slot is
~320 px wide; 640 doubles for 2× screens). #}
