diff --git a/praktikum-5/flake.lock b/praktikum-5/flake.lock
new file mode 100644
index 0000000..f82f111
--- /dev/null
+++ b/praktikum-5/flake.lock
@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1762980239,
+        "narHash": "sha256-8oNVE8TrD19ulHinjaqONf9QWCKK+w4url56cdStMpM=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "52a2caecc898d0b46b2b905f058ccc5081f842da",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1762844143,
+        "narHash": "sha256-SlybxLZ1/e4T2lb1czEtWVzDCVSTvk9WLwGhmxFmBxI=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "9da7f1cf7f8a6e2a7cb3001b048546c92a8258b4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1761765539,
+        "narHash": "sha256-b0yj6kfvO8ApcSE+QmA6mUfu8IYG6/uU28OFn4PaC8M=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "719359f4562934ae99f5443f20aa06c2ffff91fc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/praktikum-5/flake.nix b/praktikum-5/flake.nix
new file mode 100644
index 0000000..89d2878
--- /dev/null
+++ b/praktikum-5/flake.nix
@@ -0,0 +1,38 @@
+{
+  description = "Rechnerstrukturen Praktikum 5";
+
+  inputs = {
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs = inputs @ {flake-parts, ...}:
+    flake-parts.lib.mkFlake {inherit inputs;} {
+      imports = [];
+      systems = ["x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin"];
+      perSystem = {
+        config,
+        self',
+        inputs',
+        pkgs,
+        system,
+        ...
+      }:
+        with pkgs.lib; {
+          devShells.default = with pkgs;
+            mkShell {
+              packages = [
+                openjdk
+                ant
+              ];
+
+              shellHook = ''
+                echo "Usage Example:"
+                echo "ant run -Dmain-class=aufgabe3.Server"
+              '';
+            };
+        };
+      flake = {
+      };
+    };
+}
diff --git a/praktikum-5/shell.nix b/praktikum-5/shell.nix
deleted file mode 100644
index 0f505db..0000000
--- a/praktikum-5/shell.nix
+++ /dev/null
@@ -1,13 +0,0 @@
-with import <nixpkgs> {};
-  mkShell {
-    packages = [
-      openjdk
-      ant
-      astyle
-      jdt-language-server
-    ];
-
-    shellHook = ''
-      echo "Usage Example: ant run -Dmain-class=aufgabe3.Server"
-    '';
-  }