Ctrl-Alt-Del: Learning to Love Legacy Code.
summary
Code that still earns money and is too scary to update shows up everywhere: a 15‑year old site runs on classic ASP still supported on modern Windows Server, a newly inherited app is 75,000 lines of Ruby on Rails, tests are retrofitted with Selenium and CI over two years, Docker and local Redis sandboxes reproduce behavior, and a production outage traces to a 2,147,483,647 32‑bit integer overflow — practical fixes, deployment steps and measurable rollbacks decide whether to watch or skip.
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chapters (12)
- 0:00Start
- 9:34Definitions of Legacy Code
- 10:46Double Entry Bookkeeping
- 12:26The Mental Model
- 14:36The Dungeon Master
- 20:59The Path to the Dark Side
- 27:24Richard Feynman
- 28:57Scientific Method
- 31:09Create a Sandbox Environment
- 33:45Deployment Pipeline
- 36:40How the Brake Light on Your Car Works
- 39:03Transparency
