I tried https://siftery.com/aws-lambda/alternatives https://siftery.com/aws-lambda/alternatives and it pulled up the serverless framework . Why does it say tha

I tried https://siftery.com/aws-lambda/alternatives https://siftery.com/aws-lambda/alternatives and it pulled up the serverless framework . Why does it say that the serverless framework is something that runs on top of AWS lambda not a replacement? Or does it mean to use straight AWS lambda without a framework? I like the idea of the site and I have used similar sites in the past.