A step-by-step guide to deploying a .NET 6 Web API on AWS Lambda using a custom runtime, since managed .NET 6 runtime support was not yet available at the time. Covers installing Amazon Lambda tools, creating an S3 bucket for CloudFormation templates, cloning a sample repository, and deploying with the dotnet lambda CLI. Also touches on cold start considerations and how to use .NET trimming and ready-to-run features to mitigate them.
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