Building C# and C++ Apps with GitHub Copilot CLI and Visual Studio 2026
The GitHub Copilot CLI offers an alternative to traditional mouse-driven development by allowing users to describe desired outcomes in natural language. This "Vibe Coding" approach scaffolds projects, resolves errors, and explains results, significantly speeding up tasks for Microsoft engineers and others with the appropriate Copilot entitlement. This guide details setup and workflow recommendations for the CLI, assuming a clean Windows 11 installation and specific Visual Studio and Copilot CLI versions. The CLI is preferred for its ability to control the entire system, quick repro builds, repeatable workflows, and assisting less experienced developers. Prerequisites include Windows 11, administrator rights, a linked GitHub account with a Copilot seat, and a modern terminal like Windows Terminal with PowerShell 7. It is strongly recommended to run the CLI and Visual Studio within an ephemeral virtual machine to avoid conflicts with corporate compliance tools and prevent accidental data loss. A dedicated local workspace folder, not synced to cloud storage, is crucial to prevent file access errors. The Copilot CLI is installed via winget, install Visual Studio Community using winget with specific workload overrides for desired development environments. After installation, authenticate through the /login command, linking your corporate GitHub identity to a personal GitHub account if using an unmanaged machine. Begin by having Copilot profile your machine and document its environment in a global copilot-instructions.md file for future sessions.
/logincommand, linking your corporate GitHub identity to a personal GitHub account if using an unmanaged machine. Begin by having Copilot profile your machine and document its environment in a globalcopilot-instructions.mdfile for future sessions.