Today this is pretty easy to do with Bundler. You make a local copy of the gem and then instead of doing.
If you really need to hack the actual gem source then yes, that would be the way to do it. However, it should be a last resort. You don't want to maintain the actual gem if you don't have to.
Why not extend classes from the gem source whose functionality you need to change and use your classes instead of the gem classes in your Rails code?
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.