I'm looking at a few, haven't made my mind up yet.

Opencode looks like the most promising host, though there's also OpenRouter. OpenCode Go pricing is hard to beat.

Pi looks like the best harness/tool, or I could continue with claude but not use Anthropic's models/hosting, though that has the same risks that I'm trying to move away from.

GLM looks like the best model at the moment, but I think the key is building a workflow that can switch model at will.

Docker desktop sandboxes will work with all of them, so no change there.

Getting them to work together looks like a bit of effort but not too difficult.