diff --git a/flake.lock b/flake.lock
index a6ca46e..5e92b39 100644
--- a/flake.lock
+++ b/flake.lock
@@ -15,21 +15,6 @@
         "type": "github"
       }
     },
-    "flake-utils_2": {
-      "locked": {
-        "lastModified": 1667395993,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1668189330,
@@ -46,32 +31,10 @@
         "type": "github"
       }
     },
-    "poetry2nix": {
-      "inputs": {
-        "flake-utils": "flake-utils_2",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1668394823,
-        "narHash": "sha256-UJqW+Zp1boVhTKfWel2WTi7Qn0R9hfpVeSRdJYPJwXQ=",
-        "owner": "nix-community",
-        "repo": "poetry2nix",
-        "rev": "3cc82ca6ccca2a06dbb05cb0b74efd5d50e60d48",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "poetry2nix",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs",
-        "poetry2nix": "poetry2nix"
+        "nixpkgs": "nixpkgs"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index 8b0f527..ab51f18 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,43 +5,23 @@
     flake-utils = {
       url = github:numtide/flake-utils;
     };
-    poetry2nix = {
-      url = "github:nix-community/poetry2nix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
   };
-  outputs = { self, nixpkgs, flake-utils, poetry2nix }:
-    {
-      # Nixpkgs overlay providing the application
-      overlay = nixpkgs.lib.composeManyExtensions [
-        poetry2nix.overlay
-        (final: prev: {
-          # The application
-          network_inventory = prev.poetry2nix.mkPoetryApplication {
-            projectDir = ./.;
-          };
-        })
-      ];
-    } // (flake-utils.lib.eachDefaultSystem (system:
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs {
           inherit system;
-          overlays = [ self.overlay ];
         };
       in
       {
-        apps = {
-          network_inventory = pkgs.network_inventory;
-        };
-
-        defaultApp = pkgs.network_inventory;
-
         devShell = pkgs.mkShell {
           buildInputs = [
             pkgs.gnumake
+            (pkgs.poetry2nix.mkPoetryEnv {
+              projectDir = ./.;
+            })
             pkgs.python39Packages.poetry
-            pkgs.network_inventory
           ];
         };
-      }));
+      });
 }