Use OpenCode Go models in GitHub Copilot CLI with BYOK

This article explains how to configure GitHub Copilot CLI to use models from an OpenCode Go subscription via the Bring Your Own Key (BYOK) feature. It covers setting environment variables like COPILOT_PROVIDER_TYPE, COPILOT_PROVIDER_BASE_URL, COPILOT_PROVIDER_API_KEY, and COPILOT_MODEL to route requests to external providers such as GLM and Kimi models. Prerequisites include an active OpenCode Go subscription, a compatible model, and GitHub Copilot CLI installed. The guide provides step-by-step configuration examples for Bash and PowerShell, along with verification steps to ensure the setup works correctly.