tmux + Neovim + AI: My tdev Workflow for AI-Powered Development Sessions

I was pair programming over Zoom, sharing my terminal, and my partner asked me to scroll back to see a previous error. I couldn't. Terminal history doesn't scroll in screen share. That small friction made me finally learn tmux session management properly. A few days later I watched a video by DDH about his tmux workflow with Opencode and Claude Code. Editor and AI assistant side by side, both aware of each other's state. I wanted that same flow, but with Neovim and Opencode instead. What I end...