diff --git a/HackerNet.Infrastructure/HackerNet.Infrastructure.csproj b/HackerNet.Infrastructure/HackerNet.Infrastructure.csproj
new file mode 100644
index 0000000..01c7859
--- /dev/null
+++ b/HackerNet.Infrastructure/HackerNet.Infrastructure.csproj
@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\HackerNet.Application\HackerNet.Application.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/HackerNet.Infrastructure/Repositories/MemoryLinkRepository.cs b/HackerNet.Infrastructure/Repositories/MemoryLinkRepository.cs
new file mode 100644
index 0000000..0dc77b6
--- /dev/null
+++ b/HackerNet.Infrastructure/Repositories/MemoryLinkRepository.cs
@@ -0,0 +1,20 @@
+using HackerNet.Domain;
+
+namespace HackerNet.Infrastructure.Repositories.Memory;
+
+
+
+public class MemoryLinkRepository : ILinkRepository
+{
+  private List<Link> _links;
+
+  public MemoryLinkRepository(params Link[] links)
+  {
+    _links = links.ToList();
+  }
+
+  public void Add(Link link)
+  {
+    _links.Add(link);
+  }
+}
\ No newline at end of file
diff --git a/HackerNet.sln b/HackerNet.sln
index f84ae15..ca800f3 100644
--- a/HackerNet.sln
+++ b/HackerNet.sln
@@ -7,6 +7,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HackerNet.Domain", "HackerN
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HackerNet.Application", "HackerNet.Application\HackerNet.Application.csproj", "{C388B420-2920-4DCC-9E0E-4C5F0D843F11}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HackerNet.Infrastructure", "HackerNet.Infrastructure\HackerNet.Infrastructure.csproj", "{6B04E788-3ADC-4E9B-BF43-165273BD11E9}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -24,5 +26,9 @@ Global
 		{C388B420-2920-4DCC-9E0E-4C5F0D843F11}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C388B420-2920-4DCC-9E0E-4C5F0D843F11}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{C388B420-2920-4DCC-9E0E-4C5F0D843F11}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6B04E788-3ADC-4E9B-BF43-165273BD11E9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6B04E788-3ADC-4E9B-BF43-165273BD11E9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6B04E788-3ADC-4E9B-BF43-165273BD11E9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6B04E788-3ADC-4E9B-BF43-165273BD11E9}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal