Early on in the Azure Functions I published an article all about the "hidden" goodies in Azure Functions PowerShell
https://justingrote.github.io/Powershell-Azure-Functions-The-Missing-Manual/

This session will be an update on that article for the latest Azure Functions v4 release. You will learn:
1. How to use a devcontainer, Azurite, and VSCode to effectively run and test PowerShell functions
2. Examples of scaling out durable functions effectively
3. Advanced settings and integration functionality
4. Utilizing Application Insights and Durable Functions Monitor for better telemetry about how your app is doing.
5. Using Pester to test your functions both locally and end-to-end