diff --git a/flake.nix b/flake.nix
index 48a7a75864d2356bb1aff904659e9bb5655f8f63..71330a3eaca7121f7c3f7e4b9d25b73b5ce6ee5d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,65 +2,38 @@
  description = "docman is a document management tool";
 
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-23.05";
-    versionTool.url = "https://gitlab.schukai.com/oss/utilities/version/-/archive/0.5.0/version-0.5.0.tar.gz";
+    nixpkgs.url = "nixpkgs/nixos-23.05";    
   };
 
   outputs = { self, nixpkgs, versionTool, ... }:
     let
 
       lastModifiedDate = self.lastModifiedDate or self.lastModified or "19700101";
-
-      rootPath = ./.;
-
       supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
 
       forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
 
       nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
-      
       pkgs = import nixpkgs { system = "x86_64-linux"; };
       
-    in
-    {
-
+    in {
 
       packages = forAllSystems (system:
         let
- pkgs = nixpkgsFor.${system};
-    
-    versionToolPackage = versionTool.defaultPackage.${system};  # Das Paket aus der versionTool Flake bauen
-    
-    versionAndBuild = pkgs.runCommand "get-version-and-build" {
-        outputFiles = [ "version" "build" ];
-    } ''    
-    set -x
-        mkdir -p $out
-        ls -lah $out
-        pwd
-        
-        ${versionToolPackage}/bin/version print --git > $out/version
-        ${versionToolPackage}/bin/version build > $out/build
-        ls -lah $out
-    '';
-
-    version = builtins.readFile "${versionAndBuild}/version";
-    build = builtins.readFile "${versionAndBuild}/build";
-  in
-        {
+           pkgs = nixpkgsFor.${system};
+  
+        in {
           docman = pkgs.buildGoModule {
           
             name = "docman";
-            src = ././source;
-            version = "${version}";
+            version = "${self.ref}";
 
             vendorSha256 = "sha256-81IBG8H1jsYKD+tmFeCpAWFdz6cuQDt9r+FV56xboBU=";
             
             ldflags = [
-                 "-X 'gitlab.schukai.com/oss/utilities/documentation-manager/release.version=${version}' -X 'gitlab.schukai.com/oss/utilities/documentation-manager/release.build=${build}'"
+                 "-X 'gitlab.schukai.com/oss/utilities/documentation-manager/release.version=${self.ref}' -X 'gitlab.schukai.com/oss/utilities/documentation-manager/release.build=${self.rev}'"
                       ];
-                      
-            buildInputs = [ versionTool.defaultPackage.${system} ]; 
+             
 
             meta = with nixpkgs.legacyPackages.${system}.lib; {
                 description = "docman is a document management tool";