Musify/Infrastructure/Persistence/DatabaseDesignTimeFactory.cs

using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Design;
using Microsoft.Extensions.Configuration;

namespace Musify.Infrastructure.Persistence
{
    public class DatabaseDesignTimeFactory : IDesignTimeDbContextFactory<Database>
    {
        public Database CreateDbContext(string[] args)
        {
            var configuration = new ConfigurationBuilder()
                .SetBasePath(Directory.GetCurrentDirectory())
                .AddJsonFile("AppSettings.json")
                .Build();
            var connectionString = configuration.GetConnectionString("Default");

            var optionsBuilder = new DbContextOptionsBuilder<Database>();
            optionsBuilder.UseNpgsql(connectionString);

            return new Database(optionsBuilder.Options);
        }
    }
}