When AWS Lambda supports Deno, then maybe someday further down the line, I might think about trying it once for something unimportant. If that goes well, then we'll see.
Lambda’s being pulled from storage or containers being pulled from ECR is negligible. The difference here is in the container layers. If you build a small container with alpine it’s not that bad.
Not to try to convince otherwise. Just that it isn’t as bad as it used to be. Our Golang lambdas have 2ms more startup time than our JavaScript lambdas.