This is cool. I bought an Inkplate for this and got as far as writing a custom image format suitable for e-ink sort of things (4-bit RLE; trivial to decode, but good compression for diagram/text type images).

Where I got stuck is calendars... Unfortunately Google Calendar doesn't seem to provide a nice API where you can just say "give me the events for these days", instead you can only download all of your events in iCal format. It's then extremely non-trivial to convert that information into "what is happening today".

There are several ways to get all events for the day! The easiest one in my experience has been to write a simple Apps Script project and expose that as a published Web App[1]. That moves all of the oAuth logic and Calendar API plumbing to Google's server-side code, and gives you a simple long URL that contains exactly what data you want.

Something like:

```

function doGet(req) {

  let start = new Date();

  start.setHours(12,0,0,0);

  let end = new Date(start);

  end.setDate(end.getDate() + 3);

  let events = CalendarApp.getEvents(start, end);

  return ContentService.createTextOutput(events.map(x => x.getTitle()));

```

1. https://developers.google.com/apps-script/guides/web