excalidraw/firebase-project/storage.rules

rules_version = '2';
service firebase.storage {
  match /b/{bucket}/o {
    match /{files}/rooms/{room}/{file} {
    	allow get, write: if true;
    }
    match /{files}/shareLinks/{shareLink}/{file} {
    	allow get, write: if true;
    }
  }
}