Hacker News on 1 September 2019

• Tell HN: Thank you for not redesigning Hacker News
• Leon Sans, a geometric typeface made with code
• Run Commands, the 'rc' in '.bashrc'
• Firefox has lots of room to improve if it wants to beat Chrome
• Alan Turing to be the face of new £50 note
• The “mail is hard” myth
• What Happened in the UK Blackouts?
• Ways to Tweak Slow SQL Queries
• Escher-Like Spiral Tilings
• What a tweet tells us about spy satellites [video]