That's great. That way it can cater to both those who are looking to get a certification and those who just want to apply the skills (like myself). Another thought: would you be open to converting the content from HTML-in-JSON to markdown (one file per card, perhaps?). I wanted to fork your repo and create cards for various different skills, but the format kind of put me off.
Try to fork the repo and run it locally. There's a button for creating cards (button appears only when running it locally). It's still HTML-in-JSON, but you get instant preview while editing, and I think it's a nice way to format cards. HTML offers more flexibility in formatting than Markdown does. That said, I totally understand you might prefer a different format, and if you want to work on it, I'm sure you will be able to replace the HTML-in-JSON format with Markdown.
