I'm new to Powerapps, and am trying to solve this problem:
The app will rely on a locally stored data file. Either based on an Excel file, or a Sharepoint list. That is, the app needs to be able to query this data while offline. But a second requirement is that this data source should be able to update from within the app. Either by polling the master data (in an online Sharepoint solution), or by the remote server pushing data to the clients when it is updated.
What is a good approach to solve this problem?