Why do I need to install so much just to use Susy or about any sass framework?
I got really interested in using sass and sass frameworks but I can't figure out a right way to start using it. I don't get why I need to have so much installed to use just one thing. Also, I have never installed something through some sort of terminal so this freaks my out immensely, why can't I just download a zip file.
If know a useful tutorial on where to start, that would also help.
thanks in advance
On
Your Mac already comes with a version of Ruby (with Sierra even a recent enough version). Unless you are actively develping on different versions of Ruby, you don't need to install a custom Ruby (or even a ruby version manager).
You probably still need a compiler. Here, the xcode command line tools are sufficient. You can install them with xcode-select --install.
Generally, all these tools are comand-line oriented. It will help you tremendously if you try to get at least a high-level understanding of how the command line works and how you can use it with your tools. This will also help you when it comes to deploy your solution to a live-server, often running Linux with just the command line.
Compass is not required for Susy. In fact, Compass is no longer maintained, so I highly recommend against using it. Susy only requires Sass, but you can use any flavor of Sass - Libsass, Ruby Sass, Node Sass, Gulp Sass, etc. If it compiles Sass, it will work with Susy. There are instructions for various setups in the Susy docs.
Susy also doesn't require command-line knowledge itself, though Sass is often compiled that way. There are tools that provide GUI wrappers for Sass, if you aren't comfortable in the command line. I think CodeKit ships with Susy included.