[Feature Request] Add support for Opencode and Pi coding agents.

[freakynit]

Current project already supports claude and codex, which cover two of the most widely used CLI coding agents today.

However, both ecosystems are tightly coupled to their respective first-party model subscriptions and provider stacks.

A growing segment of developers is now moving toward open and provider-agnostic coding agents such as OpenCode and Pi, which allow users to plug-in virtually any OpenAI-compatible model provider, including:

• Hosted providers such as OpenAI, Anthropic, Google, DeepSeek, OpenRouter
• Self-hosted runtimes such as Ollama, LM Studio, and llama.cpp

Adding support for OpenCode and Pi would:

• Make the project accessible to a much broader open-model ecosystem
• Remove dependency on specific vendor subscriptions
• Enable local/offline usage with self-hosted models
• Align the project with the broader shift toward open, composable AI tooling

This would significantly improve adoption among developers who prefer open infrastructure and bring this project closer to being agent/runtime agnostic.

[manuelschipper]

Thanks for creating this! Already on the roadmap.