youtube-dl does have “—-username” and “—-password” flags, or will prompt for a password if you just specify “-u”. https://github.com/ytdl-org/youtube-dl#authen

youtube-dl does have “—-username” and “—-password” flags, or will prompt for a password if you just specify “-u”. https://github.com/ytdl-org/youtube-dl#authentication-options https://github.com/ytdl-org/youtube-dl#authentication-option... But as of a couple days ago it wasn’t working for age-restricted videos.