The "AI mode" in Google search is pretty bad for programming. It is not Gemini.

I don't have direct experience with ChatGPT but those that do that I've talked to place it behind Gemini and Claude models.

Try free Claude or Gemini on the web and see if you have a better experience. Claude free is better than Gemini free. (actually, Gemini free seems extra dumb lately).

This (reverse proxy) is essentially what "tailscale serve" does.

Subjectively, but with tests using identical prompts, I find the quality of qwen3.5 122b below claude haiku by as much as claude haiku is below claude sonnet for software design planning tasks. I have yet to try a like-for-like test on coding.

What LLM are you using? What you describe should be no problem for gemini free or claude haiku and above. Other models, I dunno.

The average native Japanese speaker knows more English than the average native English speaker knows Japanese.