This module adds a live whiteboard to Edrys (every room has its own whiteboard). It is based on Excalidraw.
Simply add this URL to your class modules:
https://edrys-org.github.io/module-whiteboard/
Please note this module will only work when your Edrys server is running behind HTTPS. Otherwise you will get errors about decryption failing. You can use Caddy to easily acheive that, for example:
caddy reverse-proxy --from localhost:8001 --to localhost:8000
This will run a new HTTPS server on https://localhost:8001 (assuming your Edrys is running at http://localhost:8000).