Just shipped a PR wiring push notifications into an existing comms system.
100% Ruby. Millions of lines. Dense business logic, complex deps, non-obvious behavior. I had no prior knowledge of the system, nor deep Ruby experience.
A few months ago this would’ve taken days (or weeks) to fully grasp, design, and implement.
Today, with AI? Under an hour. I focused on requirements and integration points — Codex handled the rest.
If someone says AI “isn’t a thing”… take that with a huge grain of salt.