> The second one, you can start here https://www.pgadmin.org/docs/pgadmin4/4.13/debugger.html
I think Starter Kit and the pgAdmin debugger lack in convenience. If you write C# or node js code in your preferred editor, you can debug it there. You can debug your express routes, webapi or resteasy controllers in vscode/vs/eclipse/intellij without leaving the file you later commit to git.
Starter Kit and the pgAdmin debugger are fine tools, but they come nowhere close to how you work with a js, C#, java, python or whatever you like codebase.
The development workflow with stored procedures imho is broken, and I think that is one of the main reasons people do not use them much.