Hacker News on 12 January 2016

• A Beginner's Guide to Scaling to 11M+ Users on Amazon's AWS
• Code that will break in Python 4
• Stripe now supports ACH payments
• Shutting down persona.org in November 2016
• So You Think You Can Program an Elevator
• SSH Backdoor found in Fortinet firewalls
• Cisco Must Be Held Accountable for Aiding China’s Human Rights Abuses
• Docker for Beginners
• Two Weeks of Rust
• Lodash 4.0.0 is out