Using Code From Github On Tampermonkey?

Hi. I have a few scripts that I use on Tampermonkey. I’d like to know if it is possible to transfer code (javascript?) from Github to Tampermonkey. This developer’s Github page has been around for years, . There is a link in green to “clone or download” on that page. I’m interested in bypassing the Financial Times paywall. I had been using a script in Tampermonkey for that, but it stopped working about a week ago. A few years ago, I was able to put my Chromebox in developer mode and download an extension, but I needed a lot of help to accomplish that. So I’m wondering if there is another way to accomplish the same end by using Tampermonkey and code available on github? Or are they two different technologies incompatible with each other?

Just want to add that when using Tampermonkey, I would search here to find a script for that extension. Is there a difference between Script and Javascript? Tampermonkey uses Scripts and Github uses Javascripts? I’m lost here. Can someone point me in the right direction? Does this query belong on the Linux and Git sub-forum or another one?