Hacker News on 2 December 2018

• I quit Instagram and Facebook and it made me happier
• How Google Code Search Worked: Regex Matching with a Trigram Index (2012)
• Amazon FBA Experiment
• Mozilla hit with takedown request for anti-paywall addons
• What makes BeOS and Haiku unique
• Canadian team confirms presence of huge unexplored cave in British Columbia
• New Metal-Air Transistor Replaces Semiconductors
• Receiving NOAA Weather Satellite Images with $10 USB SDR Device (2014) [video]
• Moving to GitLab
• Algebras we love