I mean, trash is subjective. Certainly a lot of abandoned gems. Case in point, for one project, I needed to pull some financial data. So used an unofficial gem for that provider. It was a mess of spaghetti and object patterns for what could have been simply a few helpers, also dependencies that clashed with another gem I was using so I simply replicated the functionality myself in like, 100 lines of code.

Btw, still worth it because Ruby is an amazing language and Rails is great. Just can't blindly trust other people's code.