[kangruixiang]

The XML comments are just my personal preference because it's fast. I have it bound to ",," so that with 2 taps, I could make a card in a few seconds. It's also supported automatically in different markdown programs like Typora/Obsidian. When I upload to the web, the comments also disappear, so the flow of the note isn't interrupted if I just want to read. For example, when you can look at my personal wiki here, you wouldn't know these are cards unless you see the original markdown files. https://kangruixiang.github.io/wiki/

You can also use anything else instead. In my example, you could use {{}} as the front of the card instead of comments. I just chose comments myself.