I built a Solarized Light eye-friendly theme plugin for Paseo using the official addTheme plugin API. No need to touch any Paseo files, and nothing is lost on upgrade. Since Paseo 0.7.0 you can install plugins straight from GitHub, one command and you're done.

I bought CommandCode's goat plan and wanted to use it as my main plan in opencode. The whole integration takes just two steps: first /connect to save the API key, then declare the provider in opencode.json. The goat plan requires an x-cmd-zdr: 1 header on every request, and testing confirmed you can add that in the config too.