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Click to edit · double-click to flip flashcard · colour-code for visual grouping · ⌘S saves
Cell CC
Plays inline in the cell
Custom:
Front Content
Colour:

☁ Connect to Cloud Sync

Set up a free Firebase project (5 min) and your grid syncs automatically across every device.

  1. Go to console.firebase.google.com and sign in with Google
  2. Click Add project → name it nestednines → disable Analytics → Create project
  3. Click the </> Web icon → nickname nestednines → Register app
    Copy the firebaseConfig block shown (you'll paste it below)
  4. Sidebar: Build → Firestore Database → Create database → Next → Start in test mode → Enable
  5. Sidebar: Build → Authentication → Get started → Sign-in method → Google → Enable → Save
  6. Paste your config below and click Connect & Sign In
⇄ Moving — click a target cell  

📂 My Grids

Import Grid

Choose a previously exported .json file, or paste JSON below.
Imports always open as a new grid — your current grid is never overwritten.

No file chosen
or paste JSON