Refactored to use postgres for production and sqlite for development

Data/SqliteApplicationDbContextFactory.cs

@@ -0,0 +1,19 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+
+namespace Example.Data;
+
+public sealed class SqliteApplicationDbContextFactory : IDesignTimeDbContextFactory<SqliteApplicationDbContext>
+{
+    public SqliteApplicationDbContext CreateDbContext(string[] args)
+    {
+        var configuration = DesignTimeConfiguration.Create(includeDevelopmentSettings: true);
+        var connectionString = configuration.GetConnectionString("DefaultConnection")
+            ?? throw new InvalidOperationException("Connection string 'DefaultConnection' was not found.");
+
+        var optionsBuilder = new DbContextOptionsBuilder<SqliteApplicationDbContext>();
+        optionsBuilder.UseSqlite(connectionString);
+
+        return new SqliteApplicationDbContext(optionsBuilder.Options);
+    }
+}