Are there any alternatives (just want to see alternatives to find which is best for my use).

Either way, looks nice!

Although a bit irrelevant, like the gradient!

I wrote termtosvg as an alternative [1]. It's a python program that records a shell session as a standalone SVG animation. Animations produced by termtosvg can be embedded in Markdown files or HTML pages.

[1] https://github.com/nbedos/termtosvg