Disco is a recommendation library. It looks at ratings or actions from users to predict other items they might like, known as collaborative filtering
"fastText is a text classification and word representation library. It can label documents with one or more categories, which is useful for content tagging"
I love this service object library
How to build a light-service action with strong parameters. Usually you would just compact all these parameters into a Hash object for it to be flexible to change in the future. I'm assuming that this "strong parameter" approach is needed in many fintech use cases, where strict guarantees are needed to be made (aka atomicity of a LightService object)
How to test a light-service action
Pretty comprehensive example on how to build a simple serverless application