I want to write a blog using blot.im; but I was looking for something like keenwrite for ease the process..

Also, I must ask. Does anyone know an keenwrite-like-emacsExtension. I would really appreciate it.

As far as I know, there are no other editors or word processors that offer interpolated variables at a keystroke[1], the primary reason I developed the software. A similar editor to KeenWrite is Jupyter Notebooks, which looks like it has an Emacs extension[2]. I think of KeenWrite as being meant for long-form prose with a little math and stats thrown in (e.g., sci-fi novels); Jupyter Notebooks is meant for math and stats with short-form prose thrown in.

[1]: https://youtu.be/CFCqe3A5dFg?t=48 (variables tutorial)

[2]: https://github.com/nnicandro/emacs-jupyter