I created a customized list form based on Power App. I migrated the list using PnP Provisioning and migrated the Power App using FlowPowerAppsMigrator by Denis Molodtsov. I got the following error: "An App already exists for this list. Remove the existing App before adding a new one.". 

Azure Repos and Visual Studio are a great combination. VS Code Extension Azure Repos is not perfect, but it simplifies development a lot. It has a bad rating in the Visual Studio marketplace, especially due to the unclear configuration process. But configuration is quite easy, if you use the following guideline.

Recently I created a Refiner Display Template to filter a Managed Metadata Term Set. I was wondering that not all refiner values were displayed. The solution was simple: I had to update the maximum number of refiner values in the Refinement WebPart. This article gives some information about the number of refiner values passed to the Refinement WebPart.

The SharePoint search engine is powerful, high-performance and can aggregate data across site collections. The search results can be flexibly adjusted. Search-based applications in SharePoint provide many advantages.

Part 2 of the blog series describes the use case for the application.