To update Oh-My-ZSH, all I need to run is `omz update`. Didn't even realise there was an omz command!
In AWS Lambda, if you use ENVIRONMENT VARS they are tied to the lambda version, so a new deploy is required to update that config change.
Eventbridge can translate a lot of useful internal Amazon events into a call to say a Lamdba, so you can drive custom behaviour from those events. For example: high vulnerabilities in your pushed ECR image could trigger lambda to fire off an alert(or delete the image).