$ python yt_fts.py download 'https://www.youtube.com/@ycombinator/videos'
    [...]
      File "/app/yt_fts.py", line 176, in get_channel_id
        channel_id = re.search('channelId":"(.{24})"', html).group(1)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    AttributeError: 'NoneType' object has no attribute 'group'

    $ python yt_fts.py download 'https://www.youtube.com/@ycombinator/videos' --channel-id UCj089h5WsDdh1q8t54K3ZCw
    [...]
      File "/app/yt_fts.py", line 191, in get_channel_name
        data = json.loads(script.string)
                          ^^^^^^^^^^^^^
    AttributeError: 'NoneType' object has no attribute 'string'

works great