To keep things simple, both the presenter and participants connect using SSH to a single Linux server. Quiz questions and answers are recorded in quiztemplate.json, participant answers are stored in local files (the UNIX way), and all quiz functionality is provided by two BASH scripts: presenter.sh run by the presenter, and participant.sh (which is run instead of BASH upon SSH login).

I recently did a Linux trivia Kahoot at KW-LUG (https://kwlug.org/) but using a slide deck presented via BigBlueButton (https://bigbluebutton.org/) instead of Kahoot because we practice open sourcery. I originally played around with making a web service based alternative to Kahoot that is more interactive than our slide deck approach in December 2022, but got distracted by other projects. John Steel (https://github.com/BlackthornYugen) suggested that the whole thing can be done with just shell scripts and files (the UNIX way), which is very much appropriate for Linux people that attend a LUG ;-)

On any Linux server (container, VM, bare metal, IoT):

• Copy participant.sh to the /bin directory
• Copy presenter.sh to the /root directory
• Copy quiztemplate.json to the /root directory

Prior to the presentation, modify the sample contents of /root/quiztemplate.json to add your questions.

During an existing video presentation (e.g., BigBlueButton, MS Teams, Zoom), the presenter will connect to the Linux server using SSH, switch to root and execute the presenter.sh script, which:

• Creates a temporary user and password that can be shared with participants on the video presentation for SSH connectivity
• Sets up the directories used to record participant results
• Presents the questions in /root/quiztemplate.json to the participants until no more questions are left
• Displays answer and question statistics following each question, as well as the top 5 scorers at the end
• Archives results, deletes all quiz files and directories, and removes the temporary user at quiz completion

After participants SSH into the Linux server using the temporary user credentials provided by the presenter, they choose their handle and answer quiz questions: