Hacker News on 28 July 2018

• Melatonin: Much More Than You Wanted to Know
• iTerm2 has a new drawing engine that uses Metal 2
• If you put chalk under a powerful microscope
• Sonic Pi: Compose electronic music with code
• Keep a Changelog
• Our brain is a storyteller, not a reporter from an inner world
• Common Git Problems and How to Fix Them
• Administrative Purgatory
• The most relaxing vacation you can take is going nowhere
• A Rogue Tesla Mechanic Resurrecting Salvaged Cars [video]