1. Notion web clipper: https://chrome.google.com/webstore/detail/notion-web-clipper/knheggckgoiihginacbkhaalnibhilkk

  2. Extrat it using

    Get .CRX Chrome Extension file, it's source code and download .CRX to your computer.

  3. Unzip it.

  4. Use the command line in MacOS Big Sur:

    xcrun safari-web-extension-converter <path to unzipped folder>

  5. That will open XCode

  6. Build in XCode for run.

  7. In Safari, enable development menu (from settings).

  8. In the development menu, enable unsigned extensions (unless you have signing keys).

  9. In the extensions settings of Safari preferences, enable the new extension.

  10. Voilá!