I recently posted this on Reddit, but this might be useful for people here too.
Recently I have really come to believe in Cardano. As a software engineer with a love for the Ruby programming language, I asked myself, how can I contribute? So I decided to start with some small steps by first creating an open source Ruby gem, a library that interacts with the Cardano SL Explorer’s APIs. I hope Ruby developers will find this useful: https://github.com/philipqnguyen/cardano_explorer
It still doesn’t cover all the explorer’s endpoints, but I plan to keep adding more to it.