Margin

Tracking since May 8, 2026.

Changelog

• Jun 6, 2026
  description

  What it does.
  
  Margin is a small e-paper desk dashboard that shows the week
  without asking for attention back. This extension is the part
  that runs in your browser — it watches Canvas and any iCal
  calendar you point it at, and quietly pushes assignments and
  due dates to the dashboard.
  
  You install it once. It signs into Supabase via your Google
  account and signs into Todoist via OAuth. From then on, it
  checks your sources every thirty minutes and the device shows
  what's due. No notifications, no popups, no daily summary
  emails. The dashboard is a permanent surface, not an app.
  
  What it syncs.
  
  — Canvas. Direct API access. Works with any school.
  — Any iCal feed. Blackboard, D2L, Moodle, Apple Calendar,
     Google Calendar, anything that exports a .ics URL.
  — Todoist (optional). The dashboard reads from Todoist;
     the extension mirrors your synced assignments there.
  
  PrairieLearn and Gradescope have content-script scaffolding
  in place but the parsers are stubbed pending real-world HTML
  samples. If you use either, email [email protected] to
  help us test.
  
  What it doesn't do.
  
  — No analytics. There is no telemetry endpoint.
  — No third parties. Your data passes through Supabase
     (the relay we run) and Todoist (your task app). That's it.
  — No ads. None now, none planned.
  
  The dashboard is sold separately.
  
  The extension is free, but it's the companion to a physical
  product. If you don't have a Margin device, the extension
  still works — it'll just relay data to a database you can't
  see. If you're curious, the device lives at margin.computer.
  Hand-assembled, fifty units in batch one.
  
  A few things worth knowing before you install.
  
  — Chromium-based browsers only. Firefox and Safari support
     are planned for batch two; not yet.
  — You'll need to sign in with Google and grant Canvas access
     for your specific school. The extension only reads from
     logged-in sessions; it never asks for your school password.
  — US and Canada only at the moment. International shipping
     for the device comes later; the extension itself works
     anywhere Canvas does.
  
  Source code.
  
  The extension is open-source after batch one ships. Until
  then, the code is private and we're not accepting external
  contributions. If you find a bug, email [email protected].
  
  Everything due. Nothing else.

  Margin puts every due date where you'll actually see it.
  
  Connect your school in seconds and Margin keeps a clean, always-current list of
  everything due (assignments, quizzes, and calendar events) in your Todoist,
  and on your Margin e-paper display if you have one. No more refreshing five course
  pages to figure out what's due.
  
  Everything due, nothing else.
  
  
  WHAT IT DOES
  
  - Canvas, with no setup. Just stay signed in to Canvas — there's no API token to
    generate and nothing to paste. It works with your school's Canvas.
  
  - Your calendars, too. Add a subscription (.ics) link from Blackboard,
    D2L / Brightspace, Moodle, Google Calendar, Apple Calendar, or anything that
    exports one, and those due dates flow in alongside Canvas.
  
  - Straight into Todoist. Margin writes each assignment to your Todoist, tidily
    labeled, and keeps it in sync — it removes duplicates, checks off what you
    finish, and never floods you with copies.
  
  - Onto your Margin display. The Margin e-paper desk device reads the same Todoist,
    so today's work sits on your desk — glanceable, calm, no notifications. The
    device is optional; the extension is useful on its own.
  
  
  PRIVATE BY DESIGN
  
  Your data goes straight from your school to your Todoist. Margin runs no server in
  the middle — we never see your assignments, your grades, or your password.
  Sign-in uses Todoist's official OAuth flow, and your access stays in your browser.
  
  Privacy policy: https://www.margin.computer/privacy.html
  
  
  WHAT MARGIN CAN — AND CAN'T — DO
  
  - Reads your Canvas assignment list while you're signed in, plus the calendars you
    add.
  - Writes assignments to the Todoist account you connect.
  - Does not read your browsing history, sell your data, or show ads.
  
  
  SET UP IN UNDER A MINUTE
  
  1. Add to Chrome.
  2. Click "Connect Todoist" — one tap, through Todoist's official sign-in.
  3. That's it. Already signed in to Canvas? Your assignments start flowing. Add
     calendar feeds whenever you like.
  
  
  Margin is for students who want their coursework handled, not gamified.
  Everything due, nothing else.
  
  Get the Margin display at https://www.margin.computer

• Jun 6, 2026
  host_permissions

  https://toovjjkpowfjupawqqzy.supabase.co/*, https://api.todoist.com/*, https://*.instructure.com/*, https://*.blackboard.com/*, https://*.brightspace.com/*, https://*.desire2learn.com/*, https://*.moodlecloud.com/*, https://prairielearn.engr.illinois.edu/*, https://us.prairielearn.com/*, https://www.gradescope.com/*, https://gradescope.com/*

  https://api.margin.computer/*, https://api.todoist.com/*, https://app.todoist.com/*, https://*.instructure.com/*, https://*.blackboard.com/*, https://*.brightspace.com/*, https://*.desire2learn.com/*, https://*.moodlecloud.com/*, https://prairielearn.engr.illinois.edu/*, https://us.prairielearn.com/*, https://www.gradescope.com/*, https://gradescope.com/*

Permissions & access

Permissions

alarmsstorageidentity

Host access

https://api.margin.computer/*, https://api.todoist.com/*, https://app.todoist.com/*, https://*.instructure.com/*, https://*.blackboard.com/*, https://*.brightspace.com/*, https://*.desire2learn.com/*, https://*.moodlecloud.com/*, https://prairielearn.engr.illinois.edu/*, https://us.prairielearn.com/*, https://www.gradescope.com/*, https://gradescope.com/*

Screenshots