OpenCode beginner setup: desktop, CLI and OpenCode Go

This beginner tutorial introduces OpenCode as an open source AI agent for programming and working with files. The presenter treats it as an alternative or supplement to Codex and Claude Code, based on his own experience. The walkthrough uses provider connections and API keys; it does not demonstrate running a local LLM.

The guide covers the desktop application and terminal workflow. The presenter demonstrates installation on a MacBook and briefly suggests PowerShell for Windows. In the desktop app, he selects a project folder, starts a session, and asks a model to describe its contents. In the terminal, he opens a project directory before launching OpenCode.

A website text edit illustrates Plan and Build. The presenter uses Shift + Tab to switch modes, answers a clarifying question in Plan, then lets Build edit the files. He also asks the agent to launch the site, which opens in Safari during the demonstration.

The provider setup covers /connect, creating an OpenCode Go API key, and selecting models through /model. The presenter discusses free models in OpenCode Zen and notes that availability changes. His assessments of model quality and subscription limits are personal judgments. Later sections cover new sessions, themes, installed skills, and a request to create a custom skill.