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Fleet Function is a technology capable of executing Node.js functions that are invoked by HTTP requests with auto-scale to zero or N with the ability to execute the functions with a cold start to almost zero. Fleet functions consume an order of magnitude less memory while maintaining security and an isolated environment. Fleet Functions are invoked via HTTP Rest, there is no need for an extra extra extra API Gateway service, each new deployment generates a preview URL for preview deployment. Fleet does not deal with containering like Cloud.com, it allows you to create your own custom environment with custom-designed tools.