Hacker News on 25 October 2016

• Music Theory: An Education from First Principles
• Next.js – A small framework for server-rendered universal JavaScript apps
• Happiness is a Boring Stack
• Server APIs Project
• Twitter Plans Hundreds More Job Cuts as Soon as This Week
• Concorde
• CPP: A Standardized Alternative to AMP
• Introduction to Cyber Security
• Show HN: Killing Procrastination by Making Everything Fit
• ZCash Will Be a Truly Anonymous Blockchain-Based Currency