I tried to fork the suggested CodeSandbox starter template, but seems like I can't open a terminal any longer in CodeSandbox without first converting to a devbox. On forking and converting to a devbox, though, I get errors:

[plugin:vite:import-analysis] Failed to resolve import "react/jsx-dev-runtime" from "src/index.jsx". Does the file exist?

Maybe the starter sandbox needs updating for compatibility with devboxes (whatever that means)? Or, if I'm doing something wrong here, please let me know how I should be using it.