It's a simple tool, no fancy features, but it gets the job done really well.
For people who work on multiple projects and want to organize their ssh config, this is a must have.
If you already have a working Ruby environment, it's not a lot. If you have to start by installing Ruby, then yes, don't bother.
BTW, this does more than "cat", it supports editing and toggling parts of your config (using --include on files that would normally be excluded).
This was my original use case: Switching between setups for remote and office work.
The editing part of "poet" looks good, but it seems like one of those tools that might suffer from being overly developed.
It's a simple tool, no fancy features, but it gets the job done really well.
For people who work on multiple projects and want to organize their ssh config, this is a must have.