Hacker News on 20 May 2021

• Extreme HTTP Performance Tuning
• Before the iPhone, I worked on a few games for what were called "feature phones"
• Spintronics: Build Mechanical Circuits
• Ask HN: Favorite purchases of last two years?
• Show HN: Tool that turns your images into plotter-like line drawings
• WebContainers: Run Node.js natively in the browser
• How the UK's online safety bill threatens Matrix
• Show HN: Nyxt Browser 2.0.0
• Face masks effectively limit the probability of SARS-CoV-2 transmission
• “I Could Rewrite Curl”