===== Youtube download =====
  * ''yt-dlp'' seems to work a lot better than ''youtube-dl''
    * download all videos in a playlist: ''yt-dlp -i <playlist>''
    * get just mp3 from download ''yt-dlp -x --audio-format mp3 <URL>''
  * fixing: ''ERROR: [youtube] na47wMFfQCo: Sign in to confirm you’re not a bot. This helps protect our community. Learn more''
    * On Chrome install Cookie Editor extension
    * on Youtube export the cookies in Netscape format
    * add to command: ''yt-dlp --cookies <name-of-cookie-file-ending-with.txt>''
    * //[[https://www.reddit.com/r/youtubedl/comments/1e6bzu4/ytdlp_error_sign_in_to_confirm_youre_not_a_bot/|source]]//