Hacker News on 20 June 2018

• Canada legalises recreational cannabis use
• Certificates for localhost
• European parliament committee approves vote on ‘disastrous’ copyright bill
• YAML: probably not so great after all (2017)
• Keybase Exploding Messages
• Ask HN: What is the first thing you implement at a new company?
• Surgeon Atul Gawande selected as CEO of new health care company from Amazon
• Big fish are found deep not because of age, climate, or prey, but because of us
• Transfer.sh – File sharing from the command line
• PostgreSQL Features You May Not Have Tried but Should