I have managed to get an XAF application into the Windows Store via the Desktop Bridge.
When a user installs my software from the Windows Store and then chooses to u
See Getting Started with EF Core on Universal Windows Platform (UWP) with a New Database. It introduces use of migrations. Migrations are designed to help you change your database design and implement the changes in production. Migrations can be frustrating though because Microsoft has not documented the feature thoroughly. There is a list somewhere of the migration features not supported for SQLite; it is important to know about that from the beginning.