Difference between this extension and the `toba.vsfire` extension

[ZYinMD]

I found there's another extension toba.vsfire, which has 10x more installs, but no longer maintained since Jan 2019.

It seems this project was started half a year after that one stopped updating, so I assume this one is better, because there must a good reason to start a new project. Could you explain a little about the difference? Thanks!