oh-my-openagent subagents as native cmux panes
cmux omo integrates oh-my-openagent (formerly oh-my-opencode), a plugin for OpenCode that orchestrates specialist agents across Claude, GPT, and Gemini in parallel. Each agent gets its own tmux pane. cmux omo uses the same tmux shim as cmux claude-teams: fake TMUX env var, every tmux command translated to cmux splits. It auto-installs the plugin into a shadow config so ~/.config/opencode stays untouched.
The shim also intercepts terminal-notifier calls and routes them through cmux notify. Works over SSH via the Go relay daemon.