this is what I use: https://github.com/Opencode-DCP/opencode-dynamic-context-pru... ; this and openviking appear to be all I need to get a proper 'do anything' setup.

Thanks, I hadn't seen OpenViking before. I do everything in Claude Code right now due to the cost advantage but between the advances in local models (especially Qwen family) and models like Gemini 3.8 Flash it may be worth revisiting.