diff --git a/flake.lock b/flake.lock
index af48ee2..1e13ce9 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,5 +1,47 @@
 {
   "nodes": {
+    "binding": {
+      "inputs": {
+        "binding": "binding_2",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1759096792,
+        "narHash": "sha256-CW4D1yJecw7Id6AxIEJOW3OpcX3Y4Ehng76/YlR1I9w=",
+        "ref": "refs/heads/main",
+        "rev": "8df2996504866f3193fbe51860ab173d25724e5e",
+        "revCount": 307,
+        "type": "git",
+        "url": "https://git.berlin.ccc.de/servicepoint/servicepoint-binding-csharp.git"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://git.berlin.ccc.de/servicepoint/servicepoint-binding-csharp.git"
+      }
+    },
+    "binding_2": {
+      "inputs": {
+        "nixpkgs": [
+          "binding",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1759093963,
+        "narHash": "sha256-nis9Xps/P1f/v9FC3LoMLGGCOMMbdrOniDSklqLsH8o=",
+        "ref": "refs/heads/main",
+        "rev": "44ef4bb6d707c46af1bed6244f17a16f26f246c1",
+        "revCount": 304,
+        "type": "git",
+        "url": "https://git.berlin.ccc.de/servicepoint/servicepoint-binding-uniffi.git"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://git.berlin.ccc.de/servicepoint/servicepoint-binding-uniffi.git"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1758589230,
@@ -18,6 +60,7 @@
     },
     "root": {
       "inputs": {
+        "binding": "binding",
         "nixpkgs": "nixpkgs"
       }
     }
diff --git a/flake.nix b/flake.nix
index caeeff0..eaa0969 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,10 +3,15 @@
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-25.05";
+
+    binding = {
+        url = "git+https://git.berlin.ccc.de/servicepoint/servicepoint-binding-csharp.git";
+        inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =
-    { self, nixpkgs }:
+    { self, nixpkgs, binding }:
     let
       supported-systems = [
         "x86_64-linux"
@@ -21,6 +26,7 @@
             inherit (nixpkgs) lib;
             pkgs = nixpkgs.legacyPackages.${system};
             selfPkgs = self.packages.${system};
+            bindingPkgs = binding.packages.${system};
           }
         );
     in
@@ -60,6 +66,7 @@
           pkgs,
           lib,
           selfPkgs,
+          bindingPkgs,
           ...
         }:
         {
@@ -75,36 +82,6 @@
             '';
           });
 
-          servicepoint-binding-csharp = pkgs.buildDotnetModule {
-            pname = "servicepoint-binding-csharp";
-            version = "0.0.0";
-
-            src = ./tanks-backend/servicepoint-binding-csharp;
-            projectFile = "ServicePoint/ServicePoint.csproj";
-            nugetDeps = ./tanks-backend/deps.json;
-
-            packNupkg = true;
-
-            nativeBuildInputs = with pkgs; [
-              pkg-config
-              xe
-              xz
-              gnumake
-              iconv
-
-              (pkgs.symlinkJoin {
-                name = "rust-toolchain";
-                paths = with pkgs; [
-                  rustc
-                  cargo
-                  rustPlatform.rustcSrc
-                  rustfmt
-                  clippy
-                ];
-              })
-            ];
-          };
-
           servicepoint-tanks-backend = pkgs.buildDotnetModule {
             pname = "servicepoint-tanks-backend";
             version = "0.0.0";
@@ -118,13 +95,7 @@
 
             selfContainedBuild = true;
 
-            buildInputs = [ selfPkgs.servicepoint-binding-csharp ];
-
-            nativeBuildInputs = with pkgs; [
-              # todo needed?
-              gnumake
-              iconv
-            ];
+            buildInputs = [ bindingPkgs.servicepoint-binding-csharp ];
           };
         }
       );
diff --git a/tanks-backend/TanksServer/TanksServer.csproj b/tanks-backend/TanksServer/TanksServer.csproj
index de285be..7ba8f60 100644
--- a/tanks-backend/TanksServer/TanksServer.csproj
+++ b/tanks-backend/TanksServer/TanksServer.csproj
@@ -7,7 +7,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <PublishAot>true</PublishAot>
+        <!--<PublishAot>true</PublishAot>-->
         <IsAotCompatible>true</IsAotCompatible>
         <InvariantGlobalization>true</InvariantGlobalization>
     </PropertyGroup>
@@ -30,8 +30,8 @@
     </ItemGroup>
 
     <ItemGroup>
-      <ProjectReference Include="..\servicepoint-binding-uniffi\SericePoint\ServicePoint.csproj" />
-      <PackageReference Include="ServicePoint" Version="*" Condition=" '$(ContinuousIntegrationBuild)'=='true' "/>
+      <ProjectReference Include="..\servicepoint-binding-uniffi\SericePoint\ServicePoint.csproj" Condition="'$(ContinuousIntegrationBuild)'!='true'" />
+      <PackageReference Include="ServicePoint" Version="*" Condition="'$(ContinuousIntegrationBuild)'=='true'"/>
     </ItemGroup>
 
 </Project>
diff --git a/tanks-backend/deps.json b/tanks-backend/deps.json
index e0d7fc9..df4c241 100644
--- a/tanks-backend/deps.json
+++ b/tanks-backend/deps.json
@@ -110,91 +110,6 @@
     "hash": "sha256-ElqfN4CcKxT3hP2qvxxObb4mnBlYG89IMxO0Sm5oZ2g="
   },
   {
-    "pname": "runtime.any.System.Collections",
-    "version": "4.3.0",
-    "hash": "sha256-4PGZqyWhZ6/HCTF2KddDsbmTTjxs2oW79YfkberDZS8="
-},
-{
-    "pname": "runtime.any.System.Diagnostics.Tools",
-    "version": "4.3.0",
-    "hash": "sha256-8yLKFt2wQxkEf7fNfzB+cPUCjYn2qbqNgQ1+EeY2h/I="
-},
-{
-    "pname": "runtime.any.System.Diagnostics.Tracing",
-    "version": "4.3.0",
-    "hash": "sha256-dsmTLGvt8HqRkDWP8iKVXJCS+akAzENGXKPV18W2RgI="
-},
-{
-    "pname": "runtime.any.System.Globalization",
-    "version": "4.3.0",
-    "hash": "sha256-PaiITTFI2FfPylTEk7DwzfKeiA/g/aooSU1pDcdwWLU="
-},
-{
-    "pname": "runtime.any.System.Globalization.Calendars",
-    "version": "4.3.0",
-    "hash": "sha256-AYh39tgXJVFu8aLi9Y/4rK8yWMaza4S4eaxjfcuEEL4="
-},
-{
-    "pname": "runtime.any.System.IO",
-    "version": "4.3.0",
-    "hash": "sha256-vej7ySRhyvM3pYh/ITMdC25ivSd0WLZAaIQbYj/6HVE="
-},
-{
-    "pname": "runtime.any.System.Reflection",
-    "version": "4.3.0",
-    "hash": "sha256-ns6f++lSA+bi1xXgmW1JkWFb2NaMD+w+YNTfMvyAiQk="
-},
-{
-    "pname": "runtime.any.System.Reflection.Extensions",
-    "version": "4.3.0",
-    "hash": "sha256-Y2AnhOcJwJVYv7Rp6Jz6ma0fpITFqJW+8rsw106K2X8="
-},
-{
-    "pname": "runtime.any.System.Reflection.Primitives",
-    "version": "4.3.0",
-    "hash": "sha256-LkPXtiDQM3BcdYkAm5uSNOiz3uF4J45qpxn5aBiqNXQ="
-},
-{
-    "pname": "runtime.any.System.Resources.ResourceManager",
-    "version": "4.3.0",
-    "hash": "sha256-9EvnmZslLgLLhJ00o5MWaPuJQlbUFcUF8itGQNVkcQ4="
-},
-{
-    "pname": "runtime.any.System.Runtime",
-    "version": "4.3.0",
-    "hash": "sha256-qwhNXBaJ1DtDkuRacgHwnZmOZ1u9q7N8j0cWOLYOELM="
-},
-{
-    "pname": "runtime.any.System.Runtime.Handles",
-    "version": "4.3.0",
-    "hash": "sha256-PQRACwnSUuxgVySO1840KvqCC9F8iI9iTzxNW0RcBS4="
-},
-{
-    "pname": "runtime.any.System.Runtime.InteropServices",
-    "version": "4.3.0",
-    "hash": "sha256-Kaw5PnLYIiqWbsoF3VKJhy7pkpoGsUwn4ZDCKscbbzA="
-},
-{
-    "pname": "runtime.any.System.Text.Encoding",
-    "version": "4.3.0",
-    "hash": "sha256-Q18B9q26MkWZx68exUfQT30+0PGmpFlDgaF0TnaIGCs="
-},
-{
-    "pname": "runtime.any.System.Text.Encoding.Extensions",
-    "version": "4.3.0",
-    "hash": "sha256-6MYj0RmLh4EVqMtO/MRqBi0HOn5iG4x9JimgCCJ+EFM="
-},
-{
-    "pname": "runtime.any.System.Threading.Tasks",
-    "version": "4.3.0",
-    "hash": "sha256-agdOM0NXupfHbKAQzQT8XgbI9B8hVEh+a/2vqeHctg4="
-},
-{
-    "pname": "runtime.any.System.Threading.Timer",
-    "version": "4.3.0",
-    "hash": "sha256-BgHxXCIbicVZtpgMimSXixhFC3V+p5ODqeljDjO8hCs="
-},
-{
     "pname": "runtime.debian.8-x64.runtime.native.System.Security.Cryptography.OpenSsl",
     "version": "4.3.0",
     "hash": "sha256-LXUPLX3DJxsU1Pd3UwjO1PO9NM2elNEDXeu2Mu/vNps="
@@ -275,46 +190,6 @@
     "hash": "sha256-pVFUKuPPIx0edQKjzRon3zKq8zhzHEzko/lc01V/jdw="
   },
   {
-    "pname": "runtime.unix.Microsoft.Win32.Primitives",
-    "version": "4.3.0",
-    "hash": "sha256-LZb23lRXzr26tRS5aA0xyB08JxiblPDoA7HBvn6awXg="
-},
-{
-    "pname": "runtime.unix.System.Console",
-    "version": "4.3.0",
-    "hash": "sha256-AHkdKShTRHttqfMjmi+lPpTuCrM5vd/WRy6Kbtie190="
-},
-{
-    "pname": "runtime.unix.System.Diagnostics.Debug",
-    "version": "4.3.0",
-    "hash": "sha256-ReoazscfbGH+R6s6jkg5sIEHWNEvjEoHtIsMbpc7+tI="
-},
-{
-    "pname": "runtime.unix.System.IO.FileSystem",
-    "version": "4.3.0",
-    "hash": "sha256-Pf4mRl6YDK2x2KMh0WdyNgv0VUNdSKVDLlHqozecy5I="
-},
-{
-    "pname": "runtime.unix.System.Net.Primitives",
-    "version": "4.3.0",
-    "hash": "sha256-pHJ+I6i16MV6m77uhTC6GPY6jWGReE3SSP3fVB59ti0="
-},
-{
-    "pname": "runtime.unix.System.Net.Sockets",
-    "version": "4.3.0",
-    "hash": "sha256-IvgOeA2JuBjKl5yAVGjPYMPDzs9phb3KANs95H9v1w4="
-},
-{
-    "pname": "runtime.unix.System.Private.Uri",
-    "version": "4.3.0",
-    "hash": "sha256-c5tXWhE/fYbJVl9rXs0uHh3pTsg44YD1dJvyOA0WoMs="
-},
-{
-    "pname": "runtime.unix.System.Runtime.Extensions",
-    "version": "4.3.0",
-    "hash": "sha256-l8S9gt6dk3qYG6HYonHtdlYtBKyPb29uQ6NDjmrt3V4="
-},
-{
     "pname": "SixLabors.ImageSharp",
     "version": "3.1.5",
     "hash": "sha256-3UehX9T+I81nfgv2dTHlpoPgYzXFk7kHr1mmlQOCBfw="
@@ -425,11 +300,6 @@
     "hash": "sha256-UoBB7WPDp2Bne/fwxKF0nE8grJ6FzTMXdT/jfsphj8Q="
   },
   {
-    "pname": "System.Net.NameResolution",
-    "version": "4.3.0",
-    "hash": "sha256-eGZwCBExWsnirWBHyp2sSSSXp6g7I6v53qNmwPgtJ5c="
-},
-{
     "pname": "System.Net.Primitives",
     "version": "4.3.0",
     "hash": "sha256-MY7Z6vOtFMbEKaLW9nOSZeAjcWpwCtdO7/W1mkGZBzE="
@@ -445,11 +315,6 @@
     "hash": "sha256-gtmRkWP2Kwr3nHtDh0yYtce38z1wrGzb6fjm4v8wN6Q="
   },
   {
-    "pname": "System.Private.Uri",
-    "version": "4.3.0",
-    "hash": "sha256-fVfgcoP4AVN1E5wHZbKBIOPYZ/xBeSIdsNF+bdukIRM="
-},
-{
     "pname": "System.Reflection",
     "version": "4.3.0",
     "hash": "sha256-NQSZRpZLvtPWDlvmMIdGxcVuyUnw92ZURo0hXsEshXY="
@@ -525,11 +390,6 @@
     "hash": "sha256-P5jHCgMbgFMYiONvzmaKFeOqcAIDPu/U8bOVrNPYKqc="
   },
   {
-    "pname": "System.Security.Claims",
-    "version": "4.3.0",
-    "hash": "sha256-Fua/rDwAqq4UByRVomAxMPmDBGd5eImRqHVQIeSxbks="
-},
-{
     "pname": "System.Security.Cryptography.Algorithms",
     "version": "4.3.0",
     "hash": "sha256-tAJvNSlczYBJ3Ed24Ae27a55tq/n4D3fubNQdwcKWA8="
@@ -565,16 +425,6 @@
     "hash": "sha256-MG3V/owDh273GCUPsGGraNwaVpcydupl3EtPXj6TVG0="
   },
   {
-    "pname": "System.Security.Principal",
-    "version": "4.3.0",
-    "hash": "sha256-rjudVUHdo8pNJg2EVEn0XxxwNo5h2EaYo+QboPkXlYk="
-},
-{
-    "pname": "System.Security.Principal.Windows",
-    "version": "4.3.0",
-    "hash": "sha256-mbdLVUcEwe78p3ZnB6jYsizNEqxMaCAWI3tEQNhRQAE="
-},
-{
     "pname": "System.Text.Encoding",
     "version": "4.3.0",
     "hash": "sha256-GctHVGLZAa/rqkBNhsBGnsiWdKyv6VDubYpGkuOkBLg="
@@ -610,11 +460,6 @@
     "hash": "sha256-X2hQ5j+fxcmnm88Le/kSavjiGOmkcumBGTZKBLvorPc="
   },
   {
-    "pname": "System.Threading.ThreadPool",
-    "version": "4.3.0",
-    "hash": "sha256-wW0QdvssRoaOfQLazTGSnwYTurE4R8FxDx70pYkL+gg="
-},
-{
     "pname": "System.Threading.Timer",
     "version": "4.3.0",
     "hash": "sha256-pmhslmhQhP32TWbBzoITLZ4BoORBqYk25OWbru04p9s="