Hacker News on 30 May 2020

• SpaceX successfully launches two humans into orbit
• Zero-day in Sign in with Apple
• Ask HN: Best books under 200 pages for developers?
• Rust: Dropping heavy things in another thread can make your code 10000x faster
• All-electric Cessna Grand Caravan makes maiden flight
• SpaceX makes history with successful first human space launch
• Oracle vs. PostgreSQL – A Comment
• Fuchsia overview
• A simple way to get more value from metrics
• Apple Mail randomly becomes the frontmost application in macOS