Just a Google Sheets playground
Follow the Node.js quickstart from Google Sheets for Developers guide, and make sure your desktop application credentials are stored in a credentials.json file -- see credentials-example.json for an example.
It will periodically check the rate-limit remaining on one or more GitHub access token(s) and push the result to a Google Sheet. Helpful for checking rate-limit consumption over time.
To check the rate-limit remaining on two GitHub access tokens, $GH_TOKEN_1 and $GH_TOKEN_2, use it like this:
node ./index.js $GH_TOKEN_1 $GH_TOKEN_2 # etc