The engineer who helped make GitHub Copilot a global force is building its open alternative from Christchurch. For millions of software developers, GitHub Copilot was the moment artificial intelligence stopped being an abstract promise and became a practical colleague. Suddenly, AI could sit in the coding environment, suggest the next line, explain unfamiliar code and help turn an idea into working software. It changed expectations of what a developer tool could do, and opened the door to a new generation of AI coding agents. Igor Costa was t...