Checkout a requested branch or ref in the Remotion repo, then install dependencies and build. Use when the user asks to checkout a ref and prepare the workspace.
$npx -y skills add remotion-dev/remotion --skill checkoutInstalls into the current project.
Run `npx skills use "https://github.com/remotion-dev/remotion" --skill "remotion-dev/remotion/checkout"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/remotion-dev/remotion" that are relevant to the current task. Run `npx skills add "https://github.com/remotion-dev/remotion"` and select the relevant skills, then follow their instructions.