It creates a index.html file in the CWD, which contains links to all videos in the playlist with a preview image of them. At the end of the page, it will have a player which will play all the videos automatically in a randomized way.
You need bash and youtube-dl.
bash run.sh "https://www.youtube.com/watch?v=GJNwkJL7-fE&list=PLniAE5ZVzgJ72qmrW0BGgNzr2RspMx3Sg"