diff --git a/back/Domain/ApplicationDbContext.cs b/back/Domain/ApplicationDbContext.cs
new file mode 100644
index 0000000..c2961e7
--- /dev/null
+++ b/back/Domain/ApplicationDbContext.cs
@@ -0,0 +1,12 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace back.Domain;
+
+public class ApplicationDbContext : DbContext
+{
+	public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
+	{
+		Database.EnsureCreated();
+		Database.Migrate();
+	}
+}
\ No newline at end of file
diff --git a/back/Domain/IEntity.cs b/back/Domain/IEntity.cs
new file mode 100644
index 0000000..7b8164e
--- /dev/null
+++ b/back/Domain/IEntity.cs
@@ -0,0 +1,14 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace back.Domain;
+
+public interface IEntity
+{
+	[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+	string Id
+	{
+		get;
+		set;
+	}
+}
\ No newline at end of file
diff --git a/back/Program.cs b/back/Program.cs
index 8dbf2df..c2cc34f 100644
--- a/back/Program.cs
+++ b/back/Program.cs
@@ -1,4 +1,8 @@
+using Autofac.Extensions.DependencyInjection;
+using back.Domain;
 using MCVIngenieros.Healthchecks;
+using MediatR.Extensions.FluentValidation.AspNetCore;
+using Microsoft.EntityFrameworkCore;
 using OpenTelemetry.Logs;
 using OpenTelemetry.Metrics;
 using OpenTelemetry.Resources;
@@ -43,7 +47,15 @@ public class Program
 			var builder = WebApplication.CreateBuilder(args);
 			builder.Configuration.AddConfiguration(configuration);
 			builder.Host.UseSerilog();
-			// Add services to the container.
+			builder.Host.UseServiceProviderFactory(new AutofacServiceProviderFactory());
+
+			builder.Services.AddMediatR(cfg =>
+			{
+				cfg.RegisterServicesFromAssembly(typeof(Program).Assembly);
+			});
+
+			builder.Services.AddFluentValidation([typeof(Program).Assembly]);
+
 			builder.Services.AddHealthChecksSupport().DiscoverHealthChecks();
 			builder.Services.AddLogging();
 			builder.Logging.AddOpenTelemetry(options =>
@@ -63,7 +75,32 @@ public class Program
 				.AddAspNetCoreInstrumentation()
 				.AddConsoleExporter());
 
+			builder.Services.AddDataProtection();
 
+			builder.Services.AddCors(options =>
+			{
+				options.AddDefaultPolicy(policy =>
+				{
+					policy
+					.WithOrigins(builder.Configuration.GetSection("AllowedHosts").Get<string[]>() ?? [])
+					.SetIsOriginAllowedToAllowWildcardSubdomains()
+					.SetPreflightMaxAge(TimeSpan.FromMinutes(10))
+					.AllowCredentials()
+					.AllowAnyHeader()
+					.AllowAnyMethod();
+				});
+			});
+			builder.Services.AddHttpContextAccessor();
+			builder.Services.AddAntiforgery(options =>
+			{
+				options.HeaderName = "X-XSRF-TOKEN";
+			});
+
+			builder.Services.AddDbContext<ApplicationDbContext>(opts =>
+			{
+				var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");
+				opts.UseSqlite(connectionString);
+			});
 
 			builder.Services.AddControllers(options =>
 			{
@@ -88,7 +125,6 @@ public class Program
 
 			app.UseAuthorization();
 
-
 			app.MapControllers();
 
 			app.Run();
diff --git a/back/appsettings.Development.json b/back/appsettings.Development.json
index 0c208ae..10f68b8 100644
--- a/back/appsettings.Development.json
+++ b/back/appsettings.Development.json
@@ -4,5 +4,6 @@
       "Default": "Information",
       "Microsoft.AspNetCore": "Warning"
     }
-  }
+  },
+  "AllowedHosts": "*"
 }
diff --git a/back/appsettings.Production.json b/back/appsettings.Production.json
index 0c208ae..3b46298 100644
--- a/back/appsettings.Production.json
+++ b/back/appsettings.Production.json
@@ -4,5 +4,6 @@
       "Default": "Information",
       "Microsoft.AspNetCore": "Warning"
     }
-  }
+  },
+  "AllowedHosts": "mmorales.photo"
 }
diff --git a/back/appsettings.json b/back/appsettings.json
index 10f68b8..0db3279 100644
--- a/back/appsettings.json
+++ b/back/appsettings.json
@@ -1,9 +1,3 @@
 {
-  "Logging": {
-    "LogLevel": {
-      "Default": "Information",
-      "Microsoft.AspNetCore": "Warning"
-    }
-  },
-  "AllowedHosts": "*"
+
 }
diff --git a/back/back.csproj b/back/back.csproj
index bad8936..7ea4bfc 100644
--- a/back/back.csproj
+++ b/back/back.csproj
@@ -7,12 +7,35 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Autofac" Version="8.4.0" />
+    <PackageReference Include="Autofac.Extensions.DependencyInjection" Version="10.0.0" />
+    <PackageReference Include="Autofac.WebApi2" Version="6.1.1" />
+    <PackageReference Include="FluentValidation" Version="12.0.0" />
+    <PackageReference Include="FluentValidation.DependencyInjectionExtensions" Version="12.0.0" />
     <PackageReference Include="MCVIngenieros.Healthchecks" Version="0.0.1" />
+    <PackageReference Include="MediatR" Version="13.0.0" />
+    <PackageReference Include="MediatR.Contracts" Version="2.0.1" />
+    <PackageReference Include="MediatR.Extensions.Autofac.DependencyInjection" Version="13.1.0" />
+    <PackageReference Include="MediatR.Extensions.FluentValidation.AspNetCore" Version="6.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Antiforgery" Version="2.3.0" />
     <PackageReference Include="Microsoft.AspNetCore.DataProtection" Version="9.0.8" />
     <PackageReference Include="Microsoft.AspNetCore.DataProtection.Abstractions" Version="9.0.8" />
     <PackageReference Include="Microsoft.AspNetCore.DataProtection.Extensions" Version="9.0.8" />
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.8">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" Version="9.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="9.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.8">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Extensions.Diagnostics.HealthChecks.EntityFrameworkCore" Version="9.0.8" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
     <PackageReference Include="OpenTelemetry" Version="1.12.0" />
     <PackageReference Include="OpenTelemetry.Api" Version="1.12.0" />
     <PackageReference Include="OpenTelemetry.Api.ProviderBuilderExtensions" Version="1.12.0" />
@@ -41,7 +64,6 @@
   <ItemGroup>
     <Folder Include="Application\" />
     <Folder Include="Infrastructure\" />
-    <Folder Include="Domain\" />
     <Folder Include="Presentation\" />
   </ItemGroup>