Cargo Lambda

The efficiency and performance of Rust make it a good fit for serverless computing. Another advantage is that Rust functions don’t require a run time, which results in fast startup times. However, the developer experience for writing the functions in Rust wasn’t great. That changed with Cargo Lambda. As a cargo subcommand, it integrates with the typical Rust workflow and allows you to run and test your AWS Lambda functions on the developer machine without needing Docker, VMs or other tools. Using a Zig toolchain, Cargo Lambda can cross-compile the functions on several operating systems for the Linux sandboxes used by AWS Lambda, and both Arm and Intel are supported as target architectures.