You can try my project Plandex[1] to use Gemini in a way that's comparable to Claude Code without copy-pasting. By default, it combines models from the major providers—Anthropic, OpenAI, and Google.
The default planning/coding models are still Sonnet 3.7 for context size under 200k, but you can switch to Gemini with `\set-model gemini-preview`.
I really like the idea of Claude Code but its rare that I fully spec out a feature on my first request and I can't see how it can be used for frontend features that require a lot of browser-centric iteration/debugging to get right.