Examine source code of D2L to NotebookLM

{
  "manifest_version": 3,
  "name": "D2L to NotebookLM",
  "version": "0.1.0",
  "description": "Export D2L content to NotebookLM.",
  "action": {
    "default_title": "D2L to NotebookLM",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "service_worker": "background.js",
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "https://notebooklm.google.com/*"
      ],
      "js": [
        "content_notebooklm.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "notebooklm_page_upload.js"
      ],
      "matches": [
        "https://notebooklm.google.com/*"
      ]
    }
  ],
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "https://notebooklm.google.com/*",
    "https://accounts.google.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "d2l-to-notebooklm@example.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}