The other alternative is to use warmers. And warmers are concurrent invocations that we send manually to our HTTP function to make sure there are always containers available. If the number of available containers is less than the warming requests, Lambda will start new containers to handle those requests. So the warming requests will incur cold starts. That way, we avoid cold starts on actual requests. In Weber, you can use warming by providing the warm attribute under the environment you want to configure. For example, here we are making sure there are always 30 warm containers available.

This is just a simple explanation with no code.