Check out the live demo here
For it to work, please make sure to enable the microphone access and allow pop-ups.
When you mention the keywords such as "code", "developer", "get hired", "get started", the voice assistant will open a new page related to the keyword.
If you go to index.js, you will see an array of hardcoded keywords.
Not sure how to work with Node.js? Check out Adam's Complete Node.js Developer Course